feat: add manual disk discovery and weekly capacity cache

feat: expose per-group refresh plans and cache storage daily
docs: confirm sampling timestamps production deployment
2026-10-15 23:30:06 +08:00 · 2026-10-15 09:17:20 +08:00 · 2026-10-15 00:51:47 +08:00 · 2026-10-15 00:35:32 +08:00 · 2026-10-14 23:43:40 +08:00 · 2026-10-11 16:29:26 +08:00
26 changed files with 1426 additions and 1361 deletions
@@ -3,3 +3,8 @@ __pycache__/
 *.pyc
 *.pyo
 *.log
+.data/
+dist/
+/storage-release.json
+/ops/deploy-storage.py
+/ops/release-storage.py
@@ -1,275 +1,77 @@
-# PIGWay Pi Control v3.7.0
+# PIGWay Raspberry Pi Agent v3.11.2

-Raspberry Pi 4B + 配套 128×32 OLED / 风扇 / RGB 散热扩展板的本机硬件监控 Agent。
+[简体中文](README.zh-CN.md) | English

-v3.7.0 在现有本机硬件监控基础上增加多机状态、日志和配置管理；未登记其他节点时继续作为完整的单机版本运行。
+Disk discovery is manual: Device Console → System configuration → select the device → Storage settings → Scan disks. The inventory persists across restarts; known filesystem capacity updates weekly. Names and visibility belong to the Agent. See [deployment and validation](STORAGE-DISCOVERY.md).

-## 已有核心功能

- SSD1306 128×32 OLED，四行固定主页
- CPU / 内存 / 温度 / 磁盘监控
- Wi-Fi RSSI / Ethernet 链路速率
- 当前默认路由与 IP 同步切换
- 风扇自动温控、回差防抖
- RGB：自定义颜色表示故障对象，频闪速度表示严重程度
- systemd 服务与普通进程监控
- Raspberry Pi PWR / ACT 运行时 Dark Mode
+PIGWay Raspberry Pi Agent is a lightweight local monitoring service for Raspberry Pi. It monitors CPU, memory, temperature, disk, networking, services, processes, system health alerts, and journal events. Ethernet monitoring reads the negotiated link speed and can alert when it remains below the configured minimum. It has no embedded Web UI and does not require a hardware plugin or Device Console.

-主页示例：
+### Installation

-```text
-CPU 18.6%   MEM 16.2%
-TMP 46.3C   FAN OFF
-DSK 22.4%   WIF -32
-IP4 192.168.1.100
-```
-
-## v3.5.0 System Health
-
-### 1. 供电与降频健康
-
-周期读取：
-
-```bash
-vcgencmd get_throttled
-```
-
-区分：
-
- 当前欠压：立即 `POWER LOW / UNDERVOLT` 告警
- 当前 CPU throttled / frequency capped：立即告警
- 本次启动历史上曾欠压/降频：只写一次历史事件日志，不持续 RGB 告警
- 状态恢复：写 `RECOVERED` 类事件
-
-注意：这里检测的是 **Pi 的供电质量**，不是 UPS 电池百分比。
-
-### 2. 文件系统健康
-
-检测根文件系统 `/` 是否被内核切成只读。如果出现只读状态，产生严重告警：
-
-```text
-FILESYSTEM RO
-ROOT READ ONLY
-CHECK STORAGE
-```
-
-### 3. 本机诊断信息
-
-内部维护：
-
- uptime
- load average
- CPU 当前频率
- 当前/历史 throttled flags
- 当前主网络接口 / IP
- 根文件系统只读状态
- sensor / network / service / health 最近成功时间
- 主循环异常计数
- I²C相关异常计数基础字段
-
-### 4. DisplayController、OLED 与 RGB
-
-每个当前故障都是 DisplayController 中的一个 active request，包含稳定 ID、priority、severity、OLED 显示数据、首次发现时间、最后变化时间和元数据。监控只提交或清除 request，同一轮采样作为一个原子批次，全部更新后只仲裁一次。DisplayController 始终只选一个最高优先级 owner；同一 ID 更新原请求而不重复入队，恢复时删除请求，同优先级新 request 排队而不抢占，owner 恢复后按 priority、first_seen、ID 重新仲裁。OLED 在主页和全部当前告警页之间轮播，告警页右上角显示 `当前页/告警总数`，新 owner 会立即抢占一次 OLED。告警页显示时 RGB 同步表达该页对象；回到主页时 RGB 保持最高优先级 active owner，全部恢复后才 OFF。历史 power flags 只进入 diagnose 和一次性 Journal 记录。
-
-### 5. RGB 正常状态与告警引擎
-
-没有 active alert 时，RGB 默认全灭。`[led] normal_mode` 可改为自定义颜色常亮/闪烁，或 MCU 已确认的流水、呼吸、跑马、彩虹和炫彩效果。常亮与闪烁使用 0..255 的自定义 R/G/B；内置流水/呼吸使用 MCU 固定的红、绿、蓝、黄、紫、青、白七色和慢/中/快三档速度，跑马/彩虹/炫彩由 MCU 自行配色。内置效果只在模式切换时按 speed → color → effect 的实机校准顺序写一次寄存器，不循环刷 I²C。
-
-任何 active alert 都会立即抢占正常效果。RGB 告警模式由当前 OLED 告警页决定；OLED 位于主页时则使用最高优先级 active owner。颜色表示故障对象：CPU负载、频率、throttling、温度与散热相关为红色，供电/欠压为橙色，内存为紫色，存储为白色，网络/Wi-Fi 为蓝色，服务/进程为青色。频率表示严重等级：默认 Warning 为1500ms亮/1500ms灭，Critical 为750ms亮/750ms灭，Emergency 为300ms亮/300ms灭。`[led]` 可分别配置六类对象的 R/G/B 值，以及三个严重等级的亮灯和灭灯时长，非法颜色值会限制到0..255，间隔最小为50ms。每次点亮使用 v3.2.0 已验证的完整 selector/R/G/B 写入顺序，只在亮/灭边沿写 MCU，不做高频软件 PWM。相邻页面 RGB mode 相同时不关闭、不重启节奏。动画不写循环日志，owner 变化记录 `DISPLAY_OWNER`，实际模式变化才记录 `RGB_MODE`。
-
-### 6. 结构化事件日志
-
-日志继续交给 systemd journal，不额外制造长期 `.log` 文件。
-
-只在 **状态发生变化** 时记录关键事件，避免每秒刷屏。例如：
-
-```text
-level=INFO event=START version=3.7.0
-level=INFO event=NET_SWITCH old_if=eth0 new_if=wlan0 ...
-level=WARN event=NETWORK_DOWN ...
-level=INFO event=NETWORK_RECOVERED ...
-level=WARN event=WATCH_DOWN name=AWESUN ...
-level=INFO event=WATCH_RECOVERED name=AWESUN ...
-level=WARN event=POWER_LOW raw=0x1
-level=INFO event=POWER_RECOVERED raw=0x0
-level=WARN event=ALERT_ACTIVE alert=TEMP_HIGH ...
-level=INFO event=ALERT_RECOVERED ...
-```
-
-实时查看：
-
-```bash
-journalctl -u pigway-pi-control -f
-```
-
-只看本次启动：
-
-```bash
-journalctl -u pigway-pi-control -b --no-pager
-```
-
-搜索某类事件：
-
-```bash
-journalctl -u pigway-pi-control --no-pager | grep 'event=POWER'
-```
-
-### 7. 诊断命令
-
-```bash
-sudo /usr/local/sbin/pigway-pi-control --diagnose
-```
-
-输出 Agent 版本、系统 uptime、配置路径、load、CPU 频率、根文件系统、全部当前/历史 power 位、主网络接口、完整 IP 和 Internet 状态，以及所有 service/process watch 状态。
-
-诊断使用与运行时相同的配置和检查函数；仅以 I²C receive-byte 读取探测 MCU 0x0D / OLED 0x3C，失败显示 MISSING/ERROR，不初始化或写入风扇、RGB、OLED。独立诊断进程无法获取正在运行的服务的内存计数，故 loop_errors / i2c_errors 明确标记 UNAVAILABLE；服务退出的 STOP 事件包含该次运行计数。
-
-RGB 保留卖家 MCU 0x0D 寄存器协议。实机校准确认静态自定义颜色配合低频亮灭最稳定；每次点亮完整写入 selector/R/G/B，寄存器间隔默认10ms。旧版 `brightness`、呼吸周期和颜色选项可以继续留在用户配置中，但频闪引擎会忽略它们。
-
-### 8. 关机收尾
-
-收到 systemd SIGTERM / 系统关机时：
-
-1. 写 STOP 日志
-2. RGB OFF
-3. 风扇 OFF
-4. OLED 清屏并 Display OFF
-5. 关闭 I²C handle
-
-Pi 红色 PWR 灯关机后恢复硬件默认亮起的行为不强行修改，可作为“系统已关机但 UPS 仍供电”的直观提示。
-
-## v3.7.0 多机监控
-
-每台机器在 `[device]` 中设置稳定标识和显示名称；保留 `auto` 时读取本机 hostname。作为 Web 聚合入口的机器可在 `[hosts]` 中登记其他已安装 PIGWay Pi Control 的节点：
-
-```ini
-[device]
-identifier = living-room
-name = 客厅树莓派
-
-[hosts]
-study = http://192.168.1.20:6001
-nas-room = http://192.168.1.21:6001
-```
-
-未设置 `[hosts]` 时，API 和 Web 保持单机使用方式。聚合入口通过各节点现有 HTTP API 读取状态、journal 和配置；节点不可达时会在机器卡片上显示离线，不影响其他节点。
-
-新增接口：
-
-```text
-GET /api/v1/hosts
-PUT /api/v1/hosts
-GET /api/v1/fleet/status
-GET /api/v1/fleet/logs
-PUT /api/v1/fleet/config
-```
-
-运行状态按机器显示独立卡片，包括机器标识、hostname、型号、序列号、板卡版本、操作系统、内核、架构、CPU 核数和 Agent 版本。内存和根分区同时显示百分比、已用量、总量及可用/剩余量；Wi-Fi 以 0–100% 为主值，并保留原始 dBm。OLED 的 Wi-Fi 主值同样使用百分比。
-
-事件日志增加机器列、机器筛选和机器排序。系统配置可选择目标机器；批量同步只发送当前已修改的配置项，并逐台返回成功或失败结果。远端 Bearer Token 只保存在当前浏览器的 localStorage 中，不写入聚合机器配置文件。
-
-## v3.6.0 API 与 Web
-
-安装后访问：
-
-```text
-http://树莓派IP:6001/
-```
-
-Web 与 JSON API 由独立的 `pigway-pi-control-api.service` 提供。API 服务不访问 I²C；硬件 Agent 每秒原子更新 `/run/pigway-pi-control/status.json`，API 只读取该快照。默认监听地址和端口可在 `[api]` 中修改：
-
-```ini
-[api]
-bind = 0.0.0.0
-port = 6001
-log_limit = 200
-```
-
-只读接口：
-
-```text
-GET /api/v1/health
-GET /api/v1/status
-GET /api/v1/logs?limit=200
-GET /api/v1/config
-GET /api/v1/services
-```
-
-日志接口支持 `since`、`until` Unix 时间戳，`severity`、`event`、`search` 筛选，`timestamp` / `severity` / `event` / `message` 排序，以及 `limit` / `offset` 分页。Web 提供今天、昨天、本周、本月和全部快捷范围。日志直接读取 systemd journal 的现有保留数据，不建立重复的 SQLite 日志副本。
-
-Web 界面支持中文和 English 切换，并将结构化 journal 事件类型显示为当前界面的语言；journal 内部稳定的事件标识保持不变，便于脚本筛选。外观可选择自动、深色或浅色，自动模式跟随浏览器/操作系统配色。语言和外观偏好只保存在当前浏览器中。
-
-配置写入接口：
-
-```text
-PUT /api/v1/config
-Authorization: Bearer <token>
-Content-Type: application/json
-
-{"updates":{"led":{"service_b":"96"},"api":{"port":"6001"}}}
-```
-
-服务监控页面会列出本机 systemd 服务，并标识“已监控/未监控”。添加、编辑或删除监控使用 `PUT /api/v1/services`；启动或停止服务使用 `PUT /api/v1/services/control`，两者均要求 Bearer Token。API 服务不能通过自己的请求停止自身，其他服务由用户自行管理。监控备注保存在配置文件的 `[service_notes]`，不会参与硬件 Agent 的监控判断。
-
-“暂停监控/恢复监控”只改变 PIGWay 是否检查该服务，不会启动或停止 systemd unit；暂停状态保存在 `[service_monitor_disabled]`。只有明确标注为“启动服务/停止服务”的按钮才会调用 systemctl。
-
-读取 token：
-
-```bash
-sudo cat /etc/pigway-pi-control-api.token
-```
-
-配置更新仅允许 `[services]`、`[processes]`、`[alerts]`、`[fan]`、`[led]`、`[timing]`、`[dark_mode]`、`[display]` 和 `[api]`。每次写入先生成时间戳备份，再原地更新目标键并重启硬件 Agent；修改 `[api]` 时 API 服务也会自动重启。
-
-## 用户配置
-
-正式配置只有一个：
-
-```text
-/etc/pigway-pi-control.conf
-```
-
-编辑：
-
-```bash
-sudo nano /etc/pigway-pi-control.conf
-sudo systemctl restart pigway-pi-control
-```
-
-配置文件内已经写明每项用途、单位和修改方式。
-
-## 安装 / 升级测试分支
+See the [Trixie fresh-install guide](docs/RASPBERRY_PI_OS_TRIXIE_FRESH_INSTALL.md) for Raspberry Pi OS Lite 64-bit based on Debian 13. The Agent itself does not access GPIO or I2C; OLED, RGB, and fan control belong to the independent hardware plugin.

 ```bash
 sudo ./install.sh
+# Explicitly enable the API:
+sudo ./install.sh --enable-api
+# Keep the API disabled:
+sudo ./install.sh --disable-api
 ```

-安装器会：
+Interactive installation asks whether to enable the remote API and defaults to no. Non-interactive installation also keeps it disabled unless explicitly enabled. `--no-start` only updates files and configuration; it does not change the current service state.

- 安装必要依赖
- 检查 I²C，并在安装前检测 `/dev/i2c-1` 是否被其他 OLED/LED 控制进程占用
- 发现冲突时列出进程并退出，由用户决定如何处理；安装器不会停止、禁用或杀死其他服务
- 确认需要多个进程共用 I²C 时，可用 `sudo ./install.sh --force-i2c-conflict` 强制继续；冲突进程仍由用户自行管理
- 安装字体、程序、配置和 systemd unit
- 完整保留用户现有配置（包括所有 section、用户值和注释），仅补入缺失的 `[led]` 和 `[api]` 选项，已有用户值优先
- 生成只读 root token，安装 API/Web 文件
- 启动硬件 Agent 与 API/Web 服务
- 执行版本、OLED、UI、P0健康监控和诊断入口自检
-
-## 常用命令
+The configuration file is `/etc/pigway-pi-control.conf`. Restart the Agent after changing monitoring settings:

 ```bash
-systemctl status pigway-pi-control --no-pager -l
-journalctl -u pigway-pi-control-api -f
-journalctl -u pigway-pi-control -f
-sudo systemctl restart pigway-pi-control
-sudo systemctl restart pigway-pi-control-api
-sudo /usr/local/sbin/pigway-pi-control --diagnose
+sudo systemctl restart pigway-pi-control.service
 ```

-## 版本路线
+### Optional API

- v3.2.0：主网络接口 / Wi-Fi RSSI / ETH速率 / 双网切换
- v3.5.0：System Health、显示仲裁与可配置 RGB 告警
- **v3.6.0：轻量状态/日志/配置 API 与同源 Web 管理界面**
- **v3.7.0：多机状态卡片、聚合日志、机器配置选择与批量同步**
+The default is `[api] enabled = false`, with no network listener. To use centralized management, enable it and configure the bind address and port, then run:
+
+```bash
+sudo systemctl enable --now pigway-pi-control-api.service
+sudo cat /etc/pigway-pi-control-api.token
+```
+
+The default port is 6001. Every read and write request requires `Authorization: Bearer <token>`. The token belongs only to this device and is not printed directly by the installer. The API exposes health, status, logs, configuration, services, plugins, and plugin configuration under `/api/v1`. It does not serve a Web UI, register multiple machines, or proxy remote requests.
+
+### Console and hardware plugins
+
+- [PIGWay Device Console](https://tea.pigway.com/way/pigway-device-console) can run on a NAS or remote server for dashboards, configuration, and batch synchronization.
+- [PIGWay Yahboom Cooling HAT](https://tea.pigway.com/way/pigway-yahboom-cooling-hat) independently provides local telemetry, OLED, fan control, and RGB effects.
+
+The remote API and local plugin integration are independent. After enabling plugin integration, register `yahboom-cooling-hat = /run/pigway-plugins/yahboom-cooling-hat/api.sock` under `[plugins]` and restart the Agent, or attach it through the Console. Discovery never binds a plugin automatically. Pausing or disconnecting integration does not stop the plugin's local functions.
+
+### Operations
+
+```bash
+sudo /usr/local/sbin/pigway-pi-control --diagnose
+sudo journalctl -u pigway-pi-control.service -f
+```
+
+Logs follow the system journal retention policy; no additional database is created. Uninstalling one project never uninstalls either of the others. See [Plugin API v1](docs/HARDWARE_PLUGIN_API.md).
+
+## Naming and compatibility
+
+This project targets Raspberry Pi. Other Linux platforms are not covered by its support claim and may have separately maintained adapters. Repository naming does not change the existing `pigway-agent` adapter ID or `pigway-pi-control` service, configuration and API identifiers.
+
+## v3.8.0 网络流量
+
+主接口每个网络采集周期读取 sysfs 的 rx_bytes/tx_bytes，以单调时间差计算字节/秒，API 新增 rx_bytes_per_second 和 tx_bytes_per_second。首次采样、接口切换、计数器重置或读取失败返回空值；不修改监控告警、硬件插件控制或 API 可选安装行为。2026-10-14 已在 Gateway 部署，实机上下行速率与 Console 标准历史指标验证通过。
+
+## v3.9.0 采样时间
+
+API 状态新增 system.observed_at、network.observed_at 和 collection.interval_seconds。Console 可每秒读取缓存，网络等低频指标保留实际采样时间，供历史去重。数据来源与原网络采样周期保持。
+
+生产 v3.9.0 与按设备周期采集的核验见 [部署记录](docs/DEPLOYMENT-v3.9.0-2026-10-15.md)。
+
+## v3.10.0 独立采集周期
+
+实时状态提供分组采样时间与下一次更新计划。容量每天读取一次，RAM 缓存跨服务重启恢复；读取失败延后一小时重试，避免反复查询存储。网络周期可独立配置，生产计划调整为 1 秒。
+
+## v3.11.2 容量周期
+
+当前已知磁盘容量及根盘兼容指标每周更新；新增磁盘只手动发现。容量缓存保留在/run并支持服务重启复用，整机重启后首次初始化容量缓存属于启动检查；不自动调用lsblk发现新设备。当前策略覆盖历史版本的30秒/每日容量刷新描述。
@@ -0,0 +1,61 @@
+# PIGWay Raspberry Pi Agent v3.11.2
+
+简体中文 | [English](README.md)
+
+新增磁盘由 Console → 系统配置 → 选择设备 → 磁盘设置 → 扫描磁盘手动发现；已保存清单跨重启保留，已知磁盘容量每周刷新。支持在 Agent 保存名称和隐藏设置。见 [部署与验证](STORAGE-DISCOVERY.md)。
+
+
+极轻的树莓派本地监控服务：CPU、内存、温度、磁盘、网络、服务/进程、系统健康告警与 journal 日志。有线网络会读取真实协商速率，并可在持续低于配置阈值时告警。无 Web 界面；无需硬件插件，也无需管理中心。
+
+## 安装
+
+Raspberry Pi OS Lite 64-bit（Debian 13 Trixie）的全新安装与兼容性说明见 [Trixie 全新安装指南](docs/RASPBERRY_PI_OS_TRIXIE_FRESH_INSTALL.zh-CN.md)。监控 Agent 本身不访问 GPIO/I²C；OLED、RGB 和风扇由独立硬件插件负责。
+
+```bash
+sudo ./install.sh
+# 显式启用 API：
+sudo ./install.sh --enable-api
+# 不启用 API：
+sudo ./install.sh --disable-api
+```
+
+交互安装询问是否启用远程 API，默认否；非交互安装未指定时也关闭。`--no-start` 仅更新文件和配置，不改变现有服务运行状态，接口开关在下次启动生效。
+
+配置文件：`/etc/pigway-pi-control.conf`。修改监控配置后执行：
+
+```bash
+sudo systemctl restart pigway-pi-control.service
+```
+
+## 可选 API
+
+默认 `[api] enabled = false`，没有网络监听。需要集中管理时改为 `true`，设置 bind/port，然后：
+
+```bash
+sudo systemctl enable --now pigway-pi-control-api.service
+sudo cat /etc/pigway-pi-control-api.token
+```
+
+默认端口6001。读取及写入都需要 `Authorization: Bearer <token>`。令牌只用于该设备；安装器显示查询方法，不直接显示令牌内容。关闭 API：配置改为 false，执行 `sudo systemctl disable --now pigway-pi-control-api.service`。
+
+API 提供 `/api/v1/health`、`/status`、`/logs`、`/config`、`/services`、`/plugins` 和 `/plugin/config`（均以 `/api/v1` 开头）。不提供网页、多机登记或远程转发。
+
+## 独立管理中心与插件
+
+- [PIGWay Device Console](https://tea.pigway.com/way/pigway-device-console)：可部署在 NAS 或远端，登记设备地址与令牌，统一看板、配置和批量同步。
+- [PIGWay Yahboom Cooling HAT](https://tea.pigway.com/way/pigway-yahboom-cooling-hat)：独立本地采集、OLED、风扇与 RGB。
+
+远程 API 与本地插件联动相互独立。插件启用接入后，可在 `[plugins]` 显式登记 `yahboom-cooling-hat = /run/pigway-plugins/yahboom-cooling-hat/api.sock` 并重启监控，或通过管理中心接入。发现不会自动绑定；暂停/断开联动不停止插件本地功能。
+
+## 运维
+
+```bash
+sudo /usr/local/sbin/pigway-pi-control --diagnose
+sudo journalctl -u pigway-pi-control.service -f
+```
+
+日志依照系统 journal 的保留策略，不额外建库。卸载任何一个项目不会卸载另外两个项目。插件协议见 [API v1](docs/HARDWARE_PLUGIN_API.md)。
+
+## 名称与兼容性
+
+本项目支持范围明确为树莓派；其他 Linux 平台以后独立维护项目。仓库改名不改变现有 `pigway-pi-control` 服务名、配置路径和 API。远程 API 仍可选择启用，默认关闭。
@@ -0,0 +1,7 @@
+# Raspberry Pi Agent v3.11.2
+
+新增磁盘只由用户手动扫描登记，已知磁盘容量及根分区兼容指标每周更新；服务重启复用运行缓存。保留现有CPU、内存、网络、硬件插件及监控协议。
+
+磁盘清单持久化，支持名称/显示设置；整机重启后容量缓存首次初始化不自动发现新盘。没有调整风扇、RGB或OLED控制协议。
+
+验证：10项后端测试通过；pigway-gateway生产升级后原两个服务正常，容量周期为604800秒，配置和令牌校验和保留。未执行整机重启或七天自然周期测试。
@@ -1,10 +1,20 @@
-857d0dc4c6281a2e4285a9e1efb89e666c27ff0f3a6a8d021a55e18bbee06e39  README.md
-72c46162c33f9587c6ccb01ad53fbaaf4ecec8cd21014b909e87e8707e253e36  app/oled_font_5x7.bin
-d0fa68951097a90eb6f51b36e56dc935d8fd7632c3de0ad6bff0b448960a7c03  app/pigway_pi_control.py
-034931590d83969f9f24222cc57800ab193588beea3d3dcedb98f1690000370d  app/pigway_pi_control_api.py
-ee0f682e8016f75f906d974f00c3e3340edddf30447d441ddfd61a7a34c9e83c  config/pigway-pi-control.conf
-f9fbb4defa45b43abe0ce66973b1f4d553369b3a43c01d04f206c573f7dc96ca  install.sh
-4f6e8db3698a62f57823d3298a0e6814593de6fa3d31e4751b7ea4a76e553e35  systemd/pigway-pi-control.service
-aa21cef9a06593371ccff005335b6c0c826fbf4b5c48e4255b5f4b75ce6e9217  systemd/pigway-pi-control-api.service
+ecf1884bb89b86ed4573d4d922a971abde43772bf7b2ffa6a999a12fbfb72caf  .gitignore
+948e700459c05a045234edfbbdd1efa240f9a0350221a40029b7416c0587e36c  README.md
+64a9708701f8c8d872a587e8a2845afff463797b06a2791319daadd705933d31  README.zh-CN.md
+c5853f283c0951b43f2bacbc49e66c26d3a605a184d427828e042eb9236d2740  app/network_rates.py
+69877b4ad2b8307db69495d629988ff4bca838dea9e36d839165029fdb6ed4a8  app/pigway_pi_control.py
+757eb6a83ca07740a2389af9b51c6fd5d940b4eb86abbc603f231409416d45db  app/pigway_pi_control_api.py
+3a8a368bbf299eb2d6cccc968a4aacf070058bddebdc5176083a97ac579d720d  app/plugin_api.py
+81ca44b8bdc384c7f27a39da8e785af2450241c65200edee61db95f48d67f058  app/storage_cache.py
+d5a783b64a10fa43191a813ef73ef8f762e359b0bd42ec155724fa46216298b0  config/pigway-pi-control.conf
+9d45f22221012a7fdb3406ce74a6113f618e9930fe460efb3869efd099e3b1d8  docs/DEPLOYMENT-v3.8.0-2026-10-14.md
+2a3cd7f58c46b7f864affd7ec64fbec38ea2d6306160cd8d4f0075a779251b5f  docs/DEPLOYMENT-v3.9.0-2026-10-15.md
+e3bf3e7070ea62c0526791bed922688c3fb49fee36ca9c375d080119968feb72  docs/HARDWARE_PLUGIN_API.md
+b54ec1f3e9fb15473910686c54142a85d387e44ea5df427a4cf1b06052e789b3  docs/RASPBERRY_PI_OS_TRIXIE_FRESH_INSTALL.md
+9222a2b6a38f6b6d7d88b30c05413c68c05f69ee499c8479eca05ee7c62e87c3  docs/RASPBERRY_PI_OS_TRIXIE_FRESH_INSTALL.zh-CN.md
+1b0aeaf4997bdb02b967d538cf276ad7462a3e22ec35fc0d046d779ef56cd1f8  install.sh
+8a593c290da5bd0d037aee86c35264512afd574a2a0f60f2c29e9db63e0109bd  systemd/pigway-pi-control-api.service
+1cb55de6b104a233066495e9786319305fa4f1b6f25483c108ab4f5ac9aa5700  systemd/pigway-pi-control.service
+8b97229abfb31c68464eb5754bc3a8fec7a6a78e216d74a86b7cc89486700740  tests/test_network_rates.py
+f78e31e0eeee4e02532885ace5c8f6f7011d084e4c7440b704408bc88495e40e  tests/test_storage_cache.py
 9f59e7313ee58e687ae6dd29d175c67082674254ac5c5f54168b2735b64c20a4  uninstall.sh
-3a40109f11bea2d44e9d61bed4a90499a5047c4fc534f97aaa90becbf9e57017  web/index.html
@@ -0,0 +1,52 @@
+# 磁盘手动扫描（2026-10-15）
+
+后续显示层已升级为 Console v2.7.0 / Ubuntu 插件 v1.5.0 / Raspberry Pi 插件 v1.6.0 / Synology 插件 v1.9.0：默认原样使用设备返回顺序，取消 NAS 特殊倒序和优先级。显示名称、同组排序、隐藏统一保存到 Console，首页与配置共用，支持恢复默认顺序。设备已有名称/隐藏定义保留为默认上报值；本篇后文“名称保存在 Agent”等描述为当时的设备定义行为，不代表最新 Console 显示偏好的存储位置。最新验收见相邻 pigway-web-manager/docs/STORAGE-PRESENTATION-v2.7.0-2026-10-15.md；所有实际扫描行为保持手动。
+
+## 已上线状态
+
+Ubuntu Agent v1.3.1 / Console 插件 v1.4.1，Raspberry Pi Agent v3.11.1 / 插件 v1.5.1，Synology 插件 v1.8.1 已上线。两台 Agent 各识别两个实际分区，监控/API 服务 active，循环错误 0。
+
+三种设备在线；中英文及 1440/820/390 三种屏宽的生产界面通过。设备名称、顺序和隐藏设置保留。Console 重启、页面加载及浏览器验收前后，NAS storage_observed_at 未改变，本次没有额外扫描 NAS 硬盘。尚未插入新物理磁盘，也未进行休眠/唤醒实测。
+
+用户最终确认“三种设备都手动发现新增磁盘”。此前自动发现与 NAS 每 5 分钟扫描的候选方案已替换。
+
+## 使用
+
+Ubuntu、树莓派：Console → 系统配置 → 选择设备 → 磁盘设置 → 扫描磁盘。扫描后重新打开该页查看新磁盘，概览随正常轮询更新。名称和隐藏设置保存到 Agent，隐藏不停止历史采集。
+
+NAS：与其他设备一样在配置 → 磁盘设置中点击“扫描磁盘”，首页只展示数据。磁盘清单、容量、温度、健康状态仅在手动扫描时更新；页面保留采集时间。CPU、内存和网络等快速采集继续工作。已有卷别名仍由 Console 保存。
+
+v1.4.1 / v1.5.1 / v1.8.1 统一配置页扫描入口，保存按钮上方保留 20px 间距，扫描与保存反馈分别显示。按用户最终要求，NAS 每个机箱内硬盘采用 DSM 返回顺序反转；存储空间同样反转，主空间和 SSD 空间优先。生产三种屏宽、中英文已验证入口、间距、倒序及优先级；NAS 存储采集时间未改变。前两次发布因验收脚本固定计入网络卡片位置而自动回退，修正为直接验证存储卡片后通过。
+
+扫描有 60 秒冷却，NAS 在途请求合并。页面加载、普通刷新、定时轮询和重启不会重新枚举磁盘。部署时执行过一次明确的初始扫描以保存现有 Agent 磁盘清单。
+
+## 实现与边界
+
+认证 PUT /api/v1/storage/scan 调用 lsblk，读取宿主机挂载点，将块设备清单保存到对应配置旁的 .storage.json（0600）。监控服务只读取清单；已知磁盘挂载和容量每 30 秒更新，新增磁盘必须手动扫描。根分区原有指标和告警保留兼容。
+
+UUID 优先作为标识，其次为设备序列号和分区编号，再退回路径并标记 stable_identity=false。展示可用叶设备，去除重复挂载及 loop/swap 等伪设备。未挂载设备不伪造使用率。配置过的条目在后续扫描未发现时保留为断开；扫描失败保留原清单。
+
+不执行挂载、格式化、分区或 SMART 指令。本次没有增加每磁盘断开/容量告警。
+
+Agent 手工配置使用 status.system.storage_inventory[].id 的 32 位十六进制 key：
+
+```ini
+[storage_names]
+0123456789abcdef0123456789abcdef = 媒体盘
+[storage_visible]
+0123456789abcdef0123456789abcdef = true
+```
+
+NAS 普通 collect 不再调度存储任务，只有 device.refresh(group=storage) 触发慢查询。重启复用上次摘要；过旧健康数据标为未确认，不确认旧告警恢复。只展示 DSM hdd_info / vol_info 上报的硬盘、扩展柜和卷，未验证任意 USB 外接盘是否均由接口提供。
+
+## 验证和备份
+
+两种 Agent 覆盖挂载点转义、bind 去重、伪设备、未挂载状态、UUID 稳定性、百分号名称、隐藏设置、手动发现和重启后禁止自动枚举。两种插件的中英文/三屏宽测试覆盖 0% 使用率、名称转义、隐藏恢复和显式扫描；打开设置不会扫描。NAS 15 项 Python 回归及六种浏览器布局通过。
+
+生产备份：
+
+- Ubuntu：/var/backups/pigway-ubuntu-agent-storage-1792043168
+- Raspberry Pi：/var/backups/pigway-pi-control-storage-1792043209
+- Console 容器：/data/storage-release-backups/1792043974（旧插件与 SQLite 备份）
+
+ops/deploy-storage.py 检查 SHA-256 清单、备份三个程序文件与配置，仅重启两个项目服务；验证失败恢复原文件。Console 更新验证三个插件版本、全部设备在线、显示设置保留、NAS 未额外扫描，并执行生产浏览器检查。
@@ -0,0 +1,29 @@
+"""Sample interface counters without summing physical and virtual interfaces."""
+import re
+from pathlib import Path
+
+
+class NetworkRates:
+    def __init__(self, root='/sys/class/net'):
+        self.root = Path(root)
+        self.previous = None
+
+    def sample(self, interface, now):
+        try:
+            if not re.fullmatch(r'[\w.:-]{1,64}', interface):
+                raise ValueError('invalid interface')
+            directory = self.root / interface / 'statistics'
+            rx = int((directory / 'rx_bytes').read_text())
+            tx = int((directory / 'tx_bytes').read_text())
+            if rx < 0 or tx < 0:
+                raise ValueError('negative counter')
+        except (OSError, ValueError, TypeError):
+            self.previous = None
+            return None, None
+        previous = self.previous
+        self.previous = interface, now, rx, tx
+        if previous is None or previous[0] != interface or now <= previous[1]:
+            return None, None
+        elapsed = now - previous[1]
+        return (None if rx < previous[2] else (rx - previous[2]) / elapsed,
+                None if tx < previous[3] else (tx - previous[3]) / elapsed)
@@ -1,12 +1,14 @@
 #!/usr/bin/env python3
-import time,socket,subprocess,configparser,signal,re,errno,threading,argparse,json,os,platform
+import time,socket,subprocess,configparser,signal,re,argparse,json,os,platform
 from pathlib import Path
-APP_VERSION="3.7.0"
-from smbus2 import SMBus
-from PIL import Image
-from shutil import disk_usage
+APP_VERSION="3.11.2"
+import sys
+sys.path.append("/usr/local/share/pigway-pi-control")
+from plugin_api import Publisher,registered,discover
+from network_rates import NetworkRates
+from storage_cache import StorageCache,StorageInventory
+storage_cache=StorageCache("/run/pigway-pi-control/storage-cache.json")

-OLED=0x3C; MCU=0x0D; W,H=128,32
 CFG="/etc/pigway-pi-control.conf"
 STATUS_PATH="/run/pigway-pi-control/status.json"
 running=True
@@ -53,6 +55,22 @@ def device_details():
    except Exception: pass
    try: info["model"]=Path("/proc/device-tree/model").read_bytes().rstrip(b"\0").decode()
    except Exception: pass
+    # Device tree identifies ARM boards; DMI covers PCs and many other vendors.
+    for key,files in {
+        "manufacturer":["/sys/class/dmi/id/sys_vendor"],
+        "model":["/sys/firmware/devicetree/base/model","/sys/class/dmi/id/product_name"],
+        "revision":["/sys/class/dmi/id/product_version","/sys/class/dmi/id/board_version"],
+        "serial":["/sys/class/dmi/id/product_serial"],
+    }.items():
+        if info.get(key):continue
+        for filename in files:
+            try:value=Path(filename).read_text().strip().strip("\0")
+            except (OSError,UnicodeError):continue
+            if value and value.lower() not in ("none","unknown","default string","to be filled by o.e.m."):
+                info[key]=value;break
+    if not info.get("manufacturer"):
+        try:info["manufacturer"]=Path("/sys/firmware/devicetree/base/compatible").read_bytes().split(b"\0")[0].decode().split(',')[0]
+        except (OSError,UnicodeError):pass
    try:
        os_release={}
        for line in Path("/etc/os-release").read_text().splitlines():
@@ -84,79 +102,21 @@ def throttled_state():
    if not m: return {"raw":"UNKNOWN","error":"vcgencmd get_throttled unavailable or invalid"}
    return {"raw":f"0x{v:x}","under_voltage_now":bool(v&1),"freq_capped_now":bool(v&2),"throttled_now":bool(v&4),"soft_temp_limit_now":bool(v&8),"under_voltage_occurred":bool(v&(1<<16)),"freq_capped_occurred":bool(v&(1<<17)),"throttled_occurred":bool(v&(1<<18)),"soft_temp_limit_occurred":bool(v&(1<<19))}

-bus=None
-bus_lock=threading.RLock()
-FONT_PATH="/usr/local/share/pigway-pi-control/oled_font_5x7.bin"
-FONT5=b""
-agent={"loop_errors":0,"i2c_errors":0}
-
-def bus_write(method,*args):
-    with bus_lock:
-        try: return getattr(bus,method)(*args)
-        except OSError:
-            agent["i2c_errors"]+=1
-            raise
-
-fan_level=0
 prev_cpu=None
 page=0; page_since=time.monotonic()
 cpu_hi=mem_hi=0
 net_ok=link_ok=True
-net_iface=""; net_kind="NET"; net_metric="DOWN"; ip_label="IP4"; ip="NO IP"
+sensor_observed_at=None
+network_observed_at=None
+network_rates=NetworkRates()
+net_rx_bytes_per_second=None; net_tx_bytes_per_second=None
+net_iface=""; net_kind="NET"; net_metric="DOWN"; net_speed_mbps=None; ip_label="IP4"; ip="NO IP"
+link_failure_since=internet_failure_since=None
 wifi_weak_since=None; wifi_weak_active=False
+ethernet_slow_since=None; ethernet_slow_active=False
 last_net=last_watch=0
 watch_state=[]

-def cmd(c): bus_write("write_byte_data",OLED,0x00,c)
-def oled_init():
-    # Seller-native physical 128x32 configuration.
-    for c in [0xAE,0xD5,0x80,0xA8,0x1F,0xD3,0x00,0x40,0x8D,0x14,
-              0x20,0x00,0xA1,0xC8,0xDA,0x02,0x81,0x7F,0xD9,0xF1,
-              0xDB,0x40,0xA4,0xA6,0xAF]:
-        cmd(c)
-
-def draw_text_5x7(pix,x,y,text):
-    for ch in text:
-        code=ord(ch)
-        if code<0 or code>255: code=ord("?")
-        off=code*5
-        if off+5>len(FONT5): code=ord("?"); off=code*5
-        for cx in range(5):
-            col=FONT5[off+cx]
-            for cy in range(7):
-                if col & (1<<cy):
-                    xx=x+cx; yy=y+cy
-                    if 0<=xx<W and 0<=yy<H: pix[xx,yy]=1
-        x+=6
-        if x>W-6: break
-
-def oled_show(lines_lr, title_zh=False):
-    im=Image.new("1",(W,H),0); pix=im.load()
-    for row,(left,right) in enumerate(lines_lr[:4]):
-        y=row*8
-        draw_text_5x7(pix,0,y,left)
-        if right:
-            draw_text_5x7(pix,max(0,W-len(right)*6),y,right)
-    data=[]
-    for pg in range(4):
-        for x in range(W):
-            v=0
-            for bit in range(8):
-                if pix[x,pg*8+bit]: v|=1<<bit
-            data.append(v)
-    cmd(0x21);cmd(0);cmd(127);cmd(0x22);cmd(0);cmd(3)
-    for i in range(0,len(data),16):
-        bus_write("write_i2c_block_data",OLED,0x40,data[i:i+16])
-
-
-def mcu(reg,val): bus_write("write_byte_data",MCU,reg,val)
-_last_rgb=None
-def rgb_off():
-    global _last_rgb
-    if _last_rgb != ("off",):
-        mcu(0x07,0x00)  # seller closeRGB(): true OFF
-        _last_rgb=("off",)
-
 def set_pi_led(name,off=True):
    base=Path("/sys/class/leds")/name
    try:
@@ -170,24 +130,6 @@ def apply_dark_mode():
    if DARK_PWR: set_pi_led("PWR",True)
    if DARK_ACT: set_pi_led("ACT",True)

-FAN_REG=[0x00,0x04,0x06,0x08,0x09,0x01]
-FAN_NAME=["OFF","L1","L2","L3","L4","MAX"]
-def fan_target(t):
-    if t<FAN_T[0]: return 0
-    if t<FAN_T[1]: return 1
-    if t<FAN_T[2]: return 2
-    if t<FAN_T[3]: return 3
-    if t<FAN_T[4]: return 4
-    return 5
-def update_fan(t):
-    global fan_level
-    want=fan_target(t); old=fan_level
-    if want>fan_level: fan_level=want
-    elif want<fan_level:
-        boundary = FAN_T[max(0,fan_level-1)] - FAN_HYST
-        if t < boundary: fan_level-=1
-    if old!=fan_level: mcu(0x08,FAN_REG[fan_level])
-
 def cpu_pct():
    global prev_cpu
    p=list(map(int,Path("/proc/stat").read_text().splitlines()[0].split()[1:9]))
@@ -203,7 +145,8 @@ def mem_pct():
            k,v=l.split(":",1); vals[k]=int(v.split()[0])
    return 100*(vals["MemTotal"]-vals["MemAvailable"])/vals["MemTotal"]
 def disk_pct():
-    d=disk_usage("/"); return 100*d.used/d.total
+    d=storage_cache.sample()
+    return 100*d["used"]/d["total"] if d else None
 def _run(args,timeout=2):
    try: return subprocess.check_output(args,text=True,stderr=subprocess.DEVNULL,timeout=timeout).strip()
    except Exception: return ""
@@ -214,8 +157,9 @@ def primary_network():
    if not dev:
        out=_run(["ip","-6","route","get","2606:4700:4700::1111"])
        dev=re.search(r"\bdev\s+(\S+)",out); src=re.search(r"\bsrc\s+(\S+)",out); label="IP6"
-    if not dev: return "","NET","DOWN","IP4","NO IP"
+    if not dev: return "","NET","DOWN",None,"IP4","NO IP"
    iface=dev.group(1); ipval=src.group(1) if src else ""
+    speed_mbps=None
    if Path(f"/sys/class/net/{iface}/wireless").exists():
        kind="WIF"; metric="--"
        try:
@@ -227,12 +171,13 @@ def primary_network():
        kind="ETH"; metric="UP"
        try:
            n=int(Path(f"/sys/class/net/{iface}/speed").read_text().strip())
+            speed_mbps=n if n>0 else None
            metric=f"{n//1000}G" if n>=1000 and n%1000==0 else str(n)
        except Exception: pass
-    return iface,kind,metric,label,(ipval or "NO IP")
+    return iface,kind,metric,speed_mbps,label,(ipval or "NO IP")

 def get_ip():
-    return primary_network()[4]
+    return primary_network()[5]

 def internet():
    try:
@@ -254,6 +199,7 @@ def load_cfg():
            if target and not target.startswith("#"): watches.append(("process",label.upper(),target))
    return c,watches
 cfg,watches=load_cfg()
+storage_inventory=StorageInventory(cache_path=Path(CFG).with_suffix(".storage.json"),capacity_path="/run/pigway-pi-control/storage-inventory-usage.json")

 def cf(section,key,default,cast=float):
    try: return cast(cfg.get(section,key))
@@ -264,13 +210,12 @@ if not DEVICE_ID or DEVICE_ID.lower()=="auto": DEVICE_ID=socket.gethostname()
 DEVICE_NAME=cf("device","name",DEVICE_ID,str).strip() or DEVICE_ID
 if DEVICE_NAME.lower()=="auto": DEVICE_NAME=DEVICE_ID
 DEVICE_INFO=device_details()
-
 SENSOR_INTERVAL=cf("timing","sensor_interval",1.0)
-OLED_REFRESH=cf("timing","oled_refresh_interval",1.0)
-PAGE_INTERVAL=cf("timing","page_interval",10.0)
 NETWORK_INTERVAL=cf("timing","network_interval",5.0)
 SERVICE_INTERVAL=cf("timing","service_interval",5.0)
 HEALTH_INTERVAL=cf("timing","health_interval",1.0)
+STARTUP_GRACE_SECONDS=max(0.0,cf("timing","startup_grace_seconds",15.0))
+NETWORK_FAILURE_SECONDS=max(0.0,cf("timing","network_failure_seconds",15.0))

 CPU_HIGH=cf("alerts","cpu_high",90.0)
 CPU_RECOVER=cf("alerts","cpu_recover",75.0)
@@ -285,52 +230,19 @@ DISK_CRIT=cf("alerts","disk_critical",95.0)
 WIFI_WEAK=cf("alerts","wifi_weak",-75.0)
 WIFI_RECOVER=cf("alerts","wifi_recover",-68.0)
 WIFI_WEAK_SECONDS=cf("alerts","wifi_weak_seconds",30.0)
+ETHERNET_MIN_SPEED=cf("alerts","ethernet_min_speed_mbps",1000,int)
+ETHERNET_SPEED_SECONDS=cf("alerts","ethernet_speed_seconds",15.0)

-FAN_T=[cf("fan","start",50.0),cf("fan","level2",53.0),cf("fan","level3",56.0),
-       cf("fan","level4",59.0),cf("fan","max",62.0)]
-FAN_HYST=cf("fan","hysteresis",1.5)
-ROW_Y=[cf("display","row1_y",0,int),cf("display","row2_y",8,int),cf("display","row3_y",16,int),cf("display","row4_y",24,int)]
 DARK_PWR=cf("dark_mode","pi_pwr_led",True,lambda x: str(x).strip().lower() in ("off","0","false","no"))
 DARK_ACT=cf("dark_mode","pi_act_led",True,lambda x: str(x).strip().lower() in ("off","0","false","no"))
-RGB_WRITE_DELAY_MS=max(1,cf("led","write_delay_ms",10,int))
-WARNING_FLASH=(max(50,cf("led","warning_flash_on_ms",1500,int)),max(50,cf("led","warning_flash_off_ms",1500,int)))
-CRITICAL_FLASH=(max(50,cf("led","critical_flash_on_ms",750,int)),max(50,cf("led","critical_flash_off_ms",750,int)))
-EMERGENCY_FLASH=(max(50,cf("led","emergency_flash_on_ms",300,int)),max(50,cf("led","emergency_flash_off_ms",300,int)))
-NORMAL_MODE=cf("led","normal_mode","off",str).strip().lower()
-NORMAL_MODES={"off","solid","flash","flow","breathe","marquee","rainbow","colorful"}
-if NORMAL_MODE not in NORMAL_MODES: NORMAL_MODE="off"
-NORMAL_COLOR=tuple(max(0,min(255,cf("led",f"normal_{channel}",value,int)))
-                   for channel,value in zip(("r","g","b"),(0,0,0)))
-NORMAL_FLASH=(max(50,cf("led","normal_flash_on_ms",1000,int)),
-              max(50,cf("led","normal_flash_off_ms",1000,int)))
-NORMAL_EFFECT_SPEED=max(1,min(3,cf("led","normal_effect_speed",2,int)))
-NORMAL_EFFECT_COLOR=cf("led","normal_effect_color","green",str).strip().lower()
-RGB_EFFECT_COLORS={"red":0,"green":1,"blue":2,"yellow":3,"purple":4,"cyan":5,"white":6}
-if NORMAL_EFFECT_COLOR not in RGB_EFFECT_COLORS: NORMAL_EFFECT_COLOR="green"
-RGB_EFFECTS={"flow":0,"breathe":1,"marquee":2,"rainbow":3,"colorful":4}
-NORMAL_RGB_MODE={"off":"OFF","solid":"NORMAL_SOLID","flash":"NORMAL_FLASH",
-                 **{name:f"NORMAL_{name.upper()}" for name in RGB_EFFECTS}}[NORMAL_MODE]
-
-def rgb_cfg(name,default):
-    return tuple(max(0,min(255,cf("led",f"{name}_{channel}",value,int)))
-                 for channel,value in zip(("r","g","b"),default))
-
-RGB_GROUP_VALUES={
-    "CPU":rgb_cfg("cpu",(255,0,0)),
-    "POWER":rgb_cfg("power",(255,40,0)),
-    "MEMORY":rgb_cfg("memory",(255,0,255)),
-    "STORAGE":rgb_cfg("storage",(255,255,255)),
-    "NETWORK":rgb_cfg("network",(0,0,255)),
-    "SERVICE":rgb_cfg("service",(0,255,96)),
-}
-RGB_OBJECT_GROUPS={
+ALERT_CATEGORIES={
    "ROOT_READONLY":"STORAGE",
    "TEMP_CRITICAL":"CPU","TEMP_HIGH":"CPU","SOFT_TEMP_LIMIT":"CPU",
    "THROTTLED":"CPU","FREQ_CAPPED":"CPU","CPU_HIGH":"CPU",
    "POWER_UNDERVOLT":"POWER",
    "MEMORY_HIGH":"MEMORY",
    "DISK_CRITICAL":"STORAGE","DISK_HIGH":"STORAGE",
-    "NETWORK_DOWN":"NETWORK","INTERNET_DOWN":"NETWORK","WIFI_WEAK":"NETWORK",
+    "NETWORK_DOWN":"NETWORK","INTERNET_DOWN":"NETWORK","WIFI_WEAK":"NETWORK","ETHERNET_SPEED_LOW":"NETWORK",
    "SERVICE_DOWN":"SERVICE","PROCESS_DOWN":"SERVICE",
 }

@@ -348,7 +260,7 @@ def diagnose():
    print("Agent:")
    print(f"version={APP_VERSION} uptime_seconds={uptime_seconds()} config={CFG}")
    print(f"machine_id={DEVICE_ID} machine_name={DEVICE_NAME} hostname={socket.gethostname()}")
-    print("loop_errors=UNAVAILABLE i2c_errors=UNAVAILABLE scope=separate_diagnostic_process")
+    print("loop_errors=UNAVAILABLE scope=separate_diagnostic_process")
    print("System:")
    print(f"load_average={load_average()} cpu_freq_mhz={cpu_freq_mhz():.0f} root_readonly={root_readonly()}")
    print("Power:")
@@ -358,30 +270,19 @@ def diagnose():
                "under_voltage_occurred","freq_capped_occurred","throttled_occurred","soft_temp_limit_occurred"):
        print(f"{key}={power.get(key,'UNKNOWN')}")
    if "error" in power: print("error="+power["error"])
-    iface,kind,metric,label,address=primary_network()
+    iface,kind,metric,speed,label,address=primary_network()
    print("Network:")
-    print(f"primary_interface={iface or 'NONE'} kind={kind} metric={metric} signal_percent={wifi_percent(metric) if kind=='WIF' else 'N/A'} ip_label={label} IP={address} internet={internet()}")
-    print("I2C:")
-    # SMBus receive-byte performs a read only; no register selection or display commands.
-    try:
-        with SMBus(1) as probe:
-            for address,name in ((MCU,"MCU"),(OLED,"OLED")):
-                try:
-                    probe.read_byte(address)
-                    print(f"0x{address:02X} {name}=PRESENT")
-                except OSError as e:
-                    status="MISSING" if e.errno in (errno.ENXIO,getattr(errno,"EREMOTEIO",121)) else "ERROR"
-                    print(f"0x{address:02X} {name}={status} error={e}")
-    except OSError as e:
-        for address,name in ((MCU,"MCU"),(OLED,"OLED")):
-            print(f"0x{address:02X} {name}=ERROR error={e}")
+    print(f"primary_interface={iface or 'NONE'} kind={kind} metric={metric} link_speed_mbps={speed if speed is not None else 'N/A'} signal_percent={wifi_percent(metric) if kind=='WIF' else 'N/A'} ip_label={label} IP={address} internet={internet()}")
+    print("Plugins (read-only API discovery; no hardware access):")
+    for plugin in discover(cfg):
+        print(f"plugin={plugin['id']} linked={plugin['linked']} online={plugin['online']}")
    print("Watches:")
    for w in watches:
        print(f"watch {w[1]}={'UP' if check_watch(w) else 'DOWN'} type={w[0]} target={w[2]}")
    return 0


-DISPLAY_PRIORITIES={
+ALERT_PRIORITIES={
    "ROOT_READONLY":100,
    "TEMP_CRITICAL":90,
    "SOFT_TEMP_LIMIT":85,
@@ -398,11 +299,12 @@ DISPLAY_PRIORITIES={
    "MEMORY_HIGH":45,
    "DISK_HIGH":40,
    "WIFI_WEAK":30,
+    "ETHERNET_SPEED_LOW":35,
    "NORMAL_HOME":0,
 }

-def display_priority(request_id):
-    return DISPLAY_PRIORITIES[request_id.split("|",1)[0]]
+def alert_priority(request_id):
+    return ALERT_PRIORITIES[request_id.split("|",1)[0]]

 def transition(key,active,on_event,off_event,**fields):
    old=event_state.get(key,False)
@@ -411,43 +313,44 @@ def transition(key,active,on_event,off_event,**fields):
        log("WARN" if active else "INFO",on_event if active else off_event,**fields)

 def update_active_alerts(cpu,temp,mem,disk,sample_elapsed=0.0):
-    global wifi_weak_since,wifi_weak_active
+    global wifi_weak_since,wifi_weak_active,ethernet_slow_since,ethernet_slow_active
    global cpu_hi,mem_hi
    cpu_hi=cpu_hi+sample_elapsed if cpu>=CPU_HIGH else 0 if cpu<CPU_RECOVER else cpu_hi
    mem_hi=mem_hi+sample_elapsed if mem>=MEM_HIGH else 0 if mem<MEM_RECOVER else mem_hi
-    if cpu_hi>=CPU_HIGH_SEC: display.request("CPU_HIGH",1,"CPU LOAD HIGH",f"LOAD {cpu:.1f}%",f"TEMP {temp:.1f}C","CHECK LOAD")
-    else: display.clear("CPU_HIGH")
+    if cpu_hi>=CPU_HIGH_SEC: alert_manager.request("CPU_HIGH",1,"CPU LOAD HIGH",f"LOAD {cpu:.1f}%",f"TEMP {temp:.1f}C","CHECK LOAD")
+    else: alert_manager.clear("CPU_HIGH")
    if temp>=TEMP_CRIT:
-        display.request("TEMP_CRITICAL",3,"TEMP CRITICAL",f"TEMP {temp:.1f}C",f"FAN {FAN_NAME[fan_level]}","CHECK COOLING")
-        display.clear("TEMP_HIGH")
+        alert_manager.request("TEMP_CRITICAL",3,"TEMP CRITICAL",f"TEMP {temp:.1f}C","CHECK COOLING","CHECK COOLING")
+        alert_manager.clear("TEMP_HIGH")
    elif temp>=TEMP_HIGH:
-        display.request("TEMP_HIGH",1,"TEMP HIGH",f"TEMP {temp:.1f}C",f"FAN {FAN_NAME[fan_level]}","CHECK COOLING")
-        display.clear("TEMP_CRITICAL")
+        alert_manager.request("TEMP_HIGH",1,"TEMP HIGH",f"TEMP {temp:.1f}C","CHECK COOLING","CHECK COOLING")
+        alert_manager.clear("TEMP_CRITICAL")
    else:
-        display.clear("TEMP_HIGH"); display.clear("TEMP_CRITICAL")
-    if mem_hi>=MEM_HIGH_SEC: display.request("MEMORY_HIGH",1,"MEMORY HIGH",f"USED {mem:.1f}%","CHECK PROCESS","")
-    else: display.clear("MEMORY_HIGH")
-    if disk>=DISK_CRIT:
-        display.request("DISK_CRITICAL",2,"DISK CRITICAL",f"USED {disk:.1f}%","FREE < 5%","CHECK STORAGE")
-        display.clear("DISK_HIGH")
-    elif disk>=DISK_HIGH:
-        display.request("DISK_HIGH",1,"DISK SPACE LOW",f"USED {disk:.1f}%","FREE < 10%","CHECK STORAGE")
-        display.clear("DISK_CRITICAL")
-    else:
-        display.clear("DISK_HIGH"); display.clear("DISK_CRITICAL")
+        alert_manager.clear("TEMP_HIGH"); alert_manager.clear("TEMP_CRITICAL")
+    if mem_hi>=MEM_HIGH_SEC: alert_manager.request("MEMORY_HIGH",1,"MEMORY HIGH",f"USED {mem:.1f}%","CHECK PROCESS","")
+    else: alert_manager.clear("MEMORY_HIGH")
+    if disk is not None:
+        if disk>=DISK_CRIT:
+            alert_manager.request("DISK_CRITICAL",2,"DISK CRITICAL",f"USED {disk:.1f}%","FREE < 5%","CHECK STORAGE")
+            alert_manager.clear("DISK_HIGH")
+        elif disk>=DISK_HIGH:
+            alert_manager.request("DISK_HIGH",1,"DISK SPACE LOW",f"USED {disk:.1f}%","FREE < 10%","CHECK STORAGE")
+            alert_manager.clear("DISK_CRITICAL")
+        else:
+            alert_manager.clear("DISK_HIGH"); alert_manager.clear("DISK_CRITICAL")
    if not link_ok:
-        display.request("NETWORK_DOWN",2,"NETWORK DOWN","NO LAN / WIFI","NO IP ADDRESS","")
-        display.clear("INTERNET_DOWN")
+        alert_manager.request("NETWORK_DOWN",2,"NETWORK DOWN","NO LAN / WIFI","NO IP ADDRESS","")
+        alert_manager.clear("INTERNET_DOWN")
    elif not net_ok:
-        display.request("INTERNET_DOWN",2,"INTERNET DOWN","LOCAL LINK OK",ip,"")
-        display.clear("NETWORK_DOWN")
+        alert_manager.request("INTERNET_DOWN",2,"INTERNET DOWN","LOCAL LINK OK",ip,"")
+        alert_manager.clear("NETWORK_DOWN")
    else:
-        display.clear("NETWORK_DOWN"); display.clear("INTERNET_DOWN")
+        alert_manager.clear("NETWORK_DOWN"); alert_manager.clear("INTERNET_DOWN")
    for w,ok in zip(watches,watch_state):
        alert_id=("SERVICE_DOWN" if w[0]=="service" else "PROCESS_DOWN")+"|"+w[1]
        if not ok:
-            display.request(alert_id,2,"SERVICE DOWN" if w[0]=="service" else "PROCESS DOWN",w[1],"CHECK / RESTART","CRITICAL",{"target":w[2]})
-        else: display.clear(alert_id)
+            alert_manager.request(alert_id,2,"SERVICE DOWN" if w[0]=="service" else "PROCESS DOWN",w[1],"CHECK / RESTART","CRITICAL",{"target":w[2]})
+        else: alert_manager.clear(alert_id)
    if net_kind=="WIF" and str(net_metric).lstrip("-").isdigit():
        rssi=float(net_metric)
        if not wifi_weak_active:
@@ -458,344 +361,114 @@ def update_active_alerts(cpu,temp,mem,disk,sample_elapsed=0.0):
        elif rssi >= WIFI_RECOVER:
            wifi_weak_active=False; wifi_weak_since=None
        if wifi_weak_active:
-            display.request("WIFI_WEAK",1,"WIFI SIGNAL WEAK",f"RSSI {rssi:.0f} dBm",f"IF {net_iface}","CHECK SIGNAL")
-        else: display.clear("WIFI_WEAK")
+            alert_manager.request("WIFI_WEAK",1,"WIFI SIGNAL WEAK",f"RSSI {rssi:.0f} dBm",f"IF {net_iface}","CHECK SIGNAL")
+        else: alert_manager.clear("WIFI_WEAK")
    else:
-        wifi_weak_since=None; wifi_weak_active=False; display.clear("WIFI_WEAK")
+        wifi_weak_since=None; wifi_weak_active=False; alert_manager.clear("WIFI_WEAK")
+    if net_kind=="ETH" and net_speed_mbps is not None and ETHERNET_MIN_SPEED>0:
+        if not ethernet_slow_active:
+            if net_speed_mbps < ETHERNET_MIN_SPEED:
+                if ethernet_slow_since is None: ethernet_slow_since=time.monotonic()
+                if time.monotonic()-ethernet_slow_since >= ETHERNET_SPEED_SECONDS: ethernet_slow_active=True
+            else: ethernet_slow_since=None
+        elif net_speed_mbps >= ETHERNET_MIN_SPEED:
+            ethernet_slow_active=False; ethernet_slow_since=None
+        if ethernet_slow_active:
+            alert_manager.request("ETHERNET_SPEED_LOW",1,"ETHERNET SLOW",f"LINK {net_speed_mbps} Mbps",f"EXPECT {ETHERNET_MIN_SPEED}+","CHECK CABLE")
+        else: alert_manager.clear("ETHERNET_SPEED_LOW")
+    else:
+        ethernet_slow_since=None; ethernet_slow_active=False; alert_manager.clear("ETHERNET_SPEED_LOW")
+    transition("ethernet_speed_low",ethernet_slow_active,"ETHERNET_SPEED_LOW","ETHERNET_SPEED_RECOVERED",
+               iface=net_iface,speed_mbps=net_speed_mbps,minimum_mbps=ETHERNET_MIN_SPEED)
    if health.get("under_voltage_now"):
-        display.request("POWER_UNDERVOLT",2,"POWER LOW","UNDERVOLTAGE","CHECK POWER","CRITICAL",{"raw":health.get("raw","")})
-    else: display.clear("POWER_UNDERVOLT")
+        alert_manager.request("POWER_UNDERVOLT",2,"POWER LOW","UNDERVOLTAGE","CHECK POWER","CRITICAL",{"raw":health.get("raw","")})
+    else: alert_manager.clear("POWER_UNDERVOLT")
    if health.get("throttled_now"):
-        display.request("THROTTLED",2,"CPU THROTTLED",f"FREQ {cpu_freq_mhz():.0f}M",health.get("raw",""),"CHECK POWER")
-    else: display.clear("THROTTLED")
+        alert_manager.request("THROTTLED",2,"CPU THROTTLED",f"FREQ {cpu_freq_mhz():.0f}M",health.get("raw",""),"CHECK POWER")
+    else: alert_manager.clear("THROTTLED")
    if health.get("freq_capped_now"):
-        display.request("FREQ_CAPPED",2,"FREQ CAPPED",f"FREQ {cpu_freq_mhz():.0f}M",health.get("raw",""),"CHECK POWER")
-    else: display.clear("FREQ_CAPPED")
+        alert_manager.request("FREQ_CAPPED",2,"FREQ CAPPED",f"FREQ {cpu_freq_mhz():.0f}M",health.get("raw",""),"CHECK POWER")
+    else: alert_manager.clear("FREQ_CAPPED")
    if health.get("soft_temp_limit_now"):
-        display.request("SOFT_TEMP_LIMIT",2,"SOFT TEMP LIMIT","CPU TEMP LIMITED",health.get("raw",""),"CHECK COOLING")
-    else: display.clear("SOFT_TEMP_LIMIT")
-    if fs_readonly: display.request("ROOT_READONLY",3,"FILESYSTEM RO","ROOT READ ONLY","CHECK STORAGE","EMERGENCY")
-    else: display.clear("ROOT_READONLY")
+        alert_manager.request("SOFT_TEMP_LIMIT",2,"SOFT TEMP LIMIT","CPU TEMP LIMITED",health.get("raw",""),"CHECK COOLING")
+    else: alert_manager.clear("SOFT_TEMP_LIMIT")
+    if fs_readonly: alert_manager.request("ROOT_READONLY",3,"FILESYSTEM RO","ROOT READ ONLY","CHECK STORAGE","EMERGENCY")
+    else: alert_manager.clear("ROOT_READONLY")

-def rgb_mode_for(request_id,severity):
-    if severity<=0: return "OFF"
-    alert_type=request_id.split("|",1)[0]
-    color=RGB_OBJECT_GROUPS[alert_type]
-    level="EMERGENCY" if severity>=3 else "CRITICAL" if severity>=2 else "WARNING"
-    return f"{color}_{level}_FLASH"
-
-def rgb_flash(mode,on):
-    global _last_rgb
-    color=mode.split("_",1)[0]
-    channels=RGB_GROUP_VALUES[color]
-    state=(mode,bool(on))
-    if _last_rgb==state: return
-    if not on:
-        mcu(0x07,0x00)
-    else:
-        mcu(0x00,0xff); time.sleep(RGB_WRITE_DELAY_MS/1000.0)
-        mcu(0x01,channels[0]); time.sleep(RGB_WRITE_DELAY_MS/1000.0)
-        mcu(0x02,channels[1]); time.sleep(RGB_WRITE_DELAY_MS/1000.0)
-        mcu(0x03,channels[2])
-    _last_rgb=state
-
-def rgb_static(channels,state_name):
-    global _last_rgb
-    state=(state_name,channels)
-    if _last_rgb==state: return
-    mcu(0x07,0x00); time.sleep(RGB_WRITE_DELAY_MS/1000.0)
-    mcu(0x00,0xff); time.sleep(RGB_WRITE_DELAY_MS/1000.0)
-    mcu(0x01,channels[0]); time.sleep(RGB_WRITE_DELAY_MS/1000.0)
-    mcu(0x02,channels[1]); time.sleep(RGB_WRITE_DELAY_MS/1000.0)
-    mcu(0x03,channels[2])
-    _last_rgb=state
-
-def rgb_normal_effect(mode):
-    global _last_rgb
-    effect_name=mode.removeprefix("NORMAL_").lower()
-    state=("effect",effect_name,NORMAL_EFFECT_SPEED,NORMAL_EFFECT_COLOR)
-    if _last_rgb==state: return
-    # Hardware-calibrated order: speed and color are parameters; the final
-    # effect register write commits and starts the selected MCU animation.
-    mcu(0x05,NORMAL_EFFECT_SPEED); time.sleep(RGB_WRITE_DELAY_MS/1000.0)
-    mcu(0x06,RGB_EFFECT_COLORS[NORMAL_EFFECT_COLOR]); time.sleep(RGB_WRITE_DELAY_MS/1000.0)
-    mcu(0x04,RGB_EFFECTS[effect_name])
-    _last_rgb=state
-
-def render_home(cpu,temp,mem,disk):
-    # 128x32 fixed columns. Both columns are LEFT-aligned.
-    # Seller 5x7 font has 6px character pitch; right column starts at x=72.
-    im=Image.new("1",(W,H),0); pix=im.load()
-    display_ip=ip[:7]+".."+ip[-7:] if ip_label=="IP6" and len(ip)>18 else ip
-    left=[
-        f"CPU {cpu:.1f}%",
-        f"TMP {temp:.1f}C",
-        f"DSK {disk:.1f}%",
-        ip_label+" "+display_ip,
-    ]
-    signal=wifi_percent(net_metric) if net_kind=="WIF" else None
-    right=[
-        f"MEM {mem:.1f}%",
-        f"FAN {FAN_NAME[fan_level]}",
-        f"WIF {signal}%" if signal is not None else f"{net_kind} {net_metric}",
-        "",
-    ]
-    for row in range(4):
-        y=row*8
-        draw_text_5x7(pix,0,y,left[row])
-        if right[row]:
-            draw_text_5x7(pix,72,y,right[row])
-    data=[]
-    for pg in range(4):
-        for x in range(W):
-            v=0
-            for bit in range(8):
-                if pix[x,pg*8+bit]: v|=1<<bit
-            data.append(v)
-    cmd(0x21);cmd(0);cmd(127);cmd(0x22);cmd(0);cmd(3)
-    for i in range(0,len(data),16):
-        bus_write("write_i2c_block_data",OLED,0x40,data[i:i+16])
-
-
-def render_alert(a,index,total):
-    oled_show([(a["title"],f"{index}/{total}"),
-               (a["l2"],""),(a["l3"],""),(a["l4"],"")])
-
-
-class DisplayController:
+class AlertManager:
+    """Current monitoring facts. Hardware plugins own all display decisions."""
    def __init__(self):
-        now=time.monotonic()
-        self.lock=threading.RLock()
-        self.requests={"NORMAL_HOME":{
-            "id":"NORMAL_HOME","priority":0,"severity":0,"rgb_mode":NORMAL_RGB_MODE,
-            "title":"","l2":"","l3":"","l4":"","active":True,
-            "first_seen":now,"last_changed":now,"metadata":{"home":(0.0,0.0,0.0,0.0)},
-        }}
-        self.current_owner_id="NORMAL_HOME"
-        self.current_priority=0
-        self.current_rgb_mode="OFF"
-        self.owner_since=now
-        self.current_oled_page_id="NORMAL_HOME"
-        self.page_started=now
-        self.batch_depth=0
-        self.stop_event=threading.Event()
-        self.rgb_thread=threading.Thread(target=self._rgb_worker,name="rgb",daemon=True)
-
-    def start(self):
-        oled_init(); self.refresh(); rgb_off(); self.rgb_thread.start()
-
-    def update_home(self,cpu,temp,mem,disk):
-        with self.lock:
-            request=self.requests["NORMAL_HOME"]
-            values=(cpu,temp,mem,disk)
-            if request["metadata"].get("home")!=values:
-                request["metadata"]={"home":values}; request["last_changed"]=time.monotonic()
+        self.requests={}

    def request(self,request_id,severity,title,l2="",l3="",l4="",metadata=None):
-        now=time.monotonic(); priority=display_priority(request_id)
-        request={"id":request_id,"priority":priority,"severity":severity,
-                 "rgb_mode":rgb_mode_for(request_id,severity),"title":title[:21],
-                 "l2":l2[:21],"l3":l3[:21],"l4":l4[:21],"active":True,
-                 "last_changed":now,"metadata":metadata or {}}
-        with self.lock:
-            current=self.requests.get(request_id)
-            if current is None:
-                request["first_seen"]=now; self.requests[request_id]=request
-                log("WARN","ALERT_ACTIVE",alert=request_id,severity=severity,detail=l2)
-            else:
-                request["first_seen"]=current["first_seen"]
-                changed=any(current.get(k)!=request.get(k) for k in
-                            ("priority","severity","rgb_mode","title","l2","l3","l4","metadata"))
-                if not changed: request["last_changed"]=current["last_changed"]
-                self.requests[request_id]=request
-            if self.batch_depth==0:
-                self._arbitrate_locked()
-                self._sync_rgb_locked()
+        now=time.monotonic();old=self.requests.get(request_id)
+        value={"id":request_id,"priority":alert_priority(request_id),"severity":severity,
+               "category":ALERT_CATEGORIES[request_id.split("|",1)[0]].lower(),
+               "title":title[:21],"l2":l2[:21],"l3":l3[:21],"l4":l4[:21],
+               "first_seen":old["first_seen"] if old else now,"metadata":metadata or {}}
+        value["last_changed"]=old["last_changed"] if old and all(old[k]==v for k,v in value.items()) else now
+        self.requests[request_id]=value
+        if old is None:log("WARN","ALERT_ACTIVE",alert=request_id,severity=severity,detail=l2)

    def clear(self,request_id):
-        if request_id=="NORMAL_HOME": return
-        with self.lock:
-            if self.requests.pop(request_id,None) is not None:
-                log("INFO","ALERT_RECOVERED",alert=request_id)
-                if self.batch_depth==0:
-                    self._arbitrate_locked()
-                    if self.current_oled_page_id not in self.requests:
-                        self._show_page_locked(self.current_owner_id)
-                    else: self._sync_rgb_locked()
-
-    def begin_update(self):
-        with self.lock: self.batch_depth+=1
-
-    def end_update(self):
-        with self.lock:
-            if self.batch_depth<=0: raise RuntimeError("display update batch imbalance")
-            self.batch_depth-=1
-            if self.batch_depth==0:
-                self._arbitrate_locked()
-                if self.current_oled_page_id not in self.requests:
-                    self._show_page_locked(self.current_owner_id)
-                else: self._sync_rgb_locked()
-
-    def _arbitrate_locked(self):
-        current=self.requests.get(self.current_owner_id)
-        ordered=sorted(self.requests.values(),key=lambda r:(-r["priority"],r["first_seen"],r["id"]))
-        candidate=ordered[0]
-        if current is not None and candidate["priority"]<=current["priority"]: return
-        self._change_owner_locked(candidate)
-
-    def _change_owner_locked(self,request):
-        old=self.current_owner_id
-        if request["id"]==old: return
-        self.current_owner_id=request["id"]
-        self.current_priority=request["priority"]
-        self.current_rgb_mode=request["rgb_mode"]
-        self.owner_since=time.monotonic()
-        log("INFO","DISPLAY_OWNER",old=old,new=request["id"],priority=request["priority"])
-        self._show_page_locked(request["id"])
-
-    def _ordered_alerts_locked(self):
-        return sorted((r for r in self.requests.values() if r["id"]!="NORMAL_HOME"),
-                      key=lambda r:(-r["priority"],r["first_seen"],r["id"]))
-
-    def _show_page_locked(self,page_id):
-        alerts=self._ordered_alerts_locked()
-        request=self.requests.get(page_id,self.requests["NORMAL_HOME"])
-        self.current_oled_page_id=request["id"]
-        self.page_started=time.monotonic()
-        self._sync_rgb_locked()
-        if request["id"]=="NORMAL_HOME":
-            render_home(*request["metadata"]["home"])
-        else:
-            alert_ids=[a["id"] for a in alerts]
-            render_alert(request,alert_ids.index(request["id"])+1,len(alerts))
-
-    def _sync_rgb_locked(self):
-        # Alert pages show that alert's object color.  HOME keeps the highest-
-        # priority active owner visible instead of briefly switching RGB off.
-        rgb_request=self.requests.get(self.current_oled_page_id)
-        if self.current_oled_page_id=="NORMAL_HOME":
-            rgb_request=self.requests.get(self.current_owner_id,self.requests["NORMAL_HOME"])
-        if rgb_request is None:
-            rgb_request=self.requests["NORMAL_HOME"]
-        self.current_rgb_mode=rgb_request["rgb_mode"]
-
-    def refresh(self):
-        with self.lock:
-            alerts=self._ordered_alerts_locked()
-            pages=["NORMAL_HOME"]+[a["id"] for a in alerts]
-            if self.current_oled_page_id not in pages:
-                self._show_page_locked(self.current_owner_id)
-                return
-            if len(pages)>1 and time.monotonic()-self.page_started>=PAGE_INTERVAL:
-                pos=pages.index(self.current_oled_page_id)
-                self._show_page_locked(pages[(pos+1)%len(pages)])
-                return
-            request=self.requests[self.current_oled_page_id]
-            if request["id"]=="NORMAL_HOME": render_home(*request["metadata"]["home"])
-            else:
-                alert_ids=[a["id"] for a in alerts]
-                render_alert(request,alert_ids.index(request["id"])+1,len(alerts))
-
-    def owner_snapshot(self):
-        with self.lock: return dict(self.requests[self.current_owner_id])
+        if self.requests.pop(request_id,None) is not None:log("INFO","ALERT_RECOVERED",alert=request_id)

    def status_snapshot(self):
-        with self.lock:
-            alerts=self._ordered_alerts_locked()
-            return {
-                "owner":self.current_owner_id,
-                "oled_page":self.current_oled_page_id,
-                "rgb_mode":self.current_rgb_mode,
-                "alerts":[{k:a[k] for k in ("id","priority","severity","title","l2","l3","l4","first_seen","last_changed")}
-                          for a in alerts],
-            }
+        values=sorted(self.requests.values(),key=lambda a:(-a["priority"],a["first_seen"],a["id"]))
+        return {"owner":values[0]["id"] if values else "NORMAL_HOME","alerts":values}

-    def _rgb_worker(self):
-        previous_error=None; applied_mode="OFF"; applied_flash=False
-        flash_on=None; animation_started=time.monotonic()
-        while not self.stop_event.is_set():
-            try:
-                with self.lock: wanted_mode=self.current_rgb_mode
-                wanted_flash=wanted_mode.endswith("_FLASH")
-                if wanted_mode!=applied_mode:
-                    with bus_lock:
-                        if wanted_mode=="OFF": rgb_off()
-                        elif wanted_mode=="NORMAL_SOLID": rgb_static(NORMAL_COLOR,"normal_solid")
-                        elif wanted_mode=="NORMAL_FLASH": rgb_static(NORMAL_COLOR,"normal_flash_on")
-                        elif wanted_mode.startswith("NORMAL_"): rgb_normal_effect(wanted_mode)
-                        elif wanted_flash:
-                            rgb_off()
-                            rgb_flash(wanted_mode,True)
-                        else: raise ValueError(f"unsupported RGB mode: {wanted_mode}")
-                    log("INFO","RGB_MODE",old=applied_mode,new=wanted_mode)
-                    applied_mode=wanted_mode; animation_started=time.monotonic()
-                    flash_on=True if wanted_mode.endswith("_FLASH") else None
-                applied_flash=applied_mode.endswith("_FLASH")
-                if applied_flash:
-                    elapsed_ms=(time.monotonic()-animation_started)*1000.0
-                    if applied_mode=="NORMAL_FLASH": on_ms,off_ms=NORMAL_FLASH
-                    elif "_EMERGENCY_" in applied_mode: on_ms,off_ms=EMERGENCY_FLASH
-                    elif "_CRITICAL_" in applied_mode: on_ms,off_ms=CRITICAL_FLASH
-                    else: on_ms,off_ms=WARNING_FLASH
-                    on=elapsed_ms%(on_ms+off_ms)<on_ms
-                    if on!=flash_on:
-                        with bus_lock:
-                            if applied_mode=="NORMAL_FLASH":
-                                rgb_static(NORMAL_COLOR,"normal_flash_on") if on else rgb_off()
-                            else: rgb_flash(applied_mode,on)
-                        flash_on=on
-                if previous_error is not None: log("INFO","RGB_RECOVERED")
-                previous_error=None
-            except Exception as e:
-                if repr(e)!=previous_error: log("ERROR","RGB_ERROR",error=repr(e))
-                previous_error=repr(e)
-            delay=0.04 if applied_flash else 0.25
-            self.stop_event.wait(delay)
-
-    def shutdown(self):
-        self.stop_event.set()
-        if self.rgb_thread.is_alive(): self.rgb_thread.join()
-        for name,action in (("rgb",rgb_off),("oled_clear",lambda:oled_show([("","")]*4)),
-                            ("oled_off",lambda:cmd(0xAE))):
-            try: action()
-            except Exception as e: log("ERROR","SHUTDOWN_CLEANUP",step=name,error=repr(e))

 def cleanup():
-    log("INFO","STOP",loop_errors=agent["loop_errors"],i2c_errors=agent["i2c_errors"])
-    if bus is None: return
-    display.shutdown()
-    for name,action in (("fan",lambda:mcu(0x08,0x00)),("bus_close",bus.close)):
-        try: action()
-        except Exception as e: log("ERROR","SHUTDOWN_CLEANUP",step=name,error=repr(e))
-    try: Path(STATUS_PATH).unlink(missing_ok=True)
-    except Exception as e: log("ERROR","SHUTDOWN_CLEANUP",step="status_file",error=repr(e))
+    publisher.close()
+    log("INFO","STOP",loop_errors=agent["loop_errors"])
+    try:Path(STATUS_PATH).unlink(missing_ok=True)
+    except Exception as e:log("ERROR","SHUTDOWN_CLEANUP",step="status_file",error=repr(e))

 def write_status(cpu,temp,mem,disk):
-    display_state=display.status_snapshot()
+    display_state=alert_manager.status_snapshot()
    memory_total,memory_used,memory_available,memory_calculated=memory_usage()
-    disk_total,disk_used,disk_free=disk_usage("/")
+    storage=storage_cache.sample()
+    disks=storage_inventory.sample(cfg)
+    disk_total,disk_used,disk_free=(storage[k] for k in ("total","used","free")) if storage else (None,None,None)
    signal=wifi_percent(net_metric) if net_kind=="WIF" else None
    state={
-        "version":APP_VERSION,"timestamp":int(time.time()),"uptime_seconds":uptime_seconds(),
+        "version":APP_VERSION,"timestamp":int(time.time()),
+        "collection":{"interval_seconds":min(1.0,SENSOR_INTERVAL,NETWORK_INTERVAL,SERVICE_INTERVAL,HEALTH_INTERVAL),
+          "refresh":{
+            "storage_inventory":{"interval_seconds":604800,"observed_at":storage_inventory.observed_at,"next_update_at":storage_inventory.next_update_at,"error":storage_inventory.error},
+            "system":{"interval_seconds":SENSOR_INTERVAL,"observed_at":sensor_observed_at,"next_update_at":sensor_observed_at+SENSOR_INTERVAL if sensor_observed_at else None},
+            "network":{"interval_seconds":NETWORK_INTERVAL,"observed_at":network_observed_at,"next_update_at":network_observed_at+NETWORK_INTERVAL if network_observed_at else None},
+            "storage":{"interval_seconds":604800,"observed_at":storage_cache.observed_at,"next_update_at":storage_cache.next_update_at,"error":storage_cache.error},
+            "display":{"interval_seconds":1,"next_update_at":time.time()+1},
+            "alerts":{"interval_seconds":1,"next_update_at":time.time()+1}}},"uptime_seconds":uptime_seconds(),
        "machine":{"id":DEVICE_ID,"name":DEVICE_NAME,"hostname":socket.gethostname()},
        "device":DEVICE_INFO,
-        "system":{"load_average":load_average(),"cpu_percent":round(cpu,1),
+        "system":{"observed_at":sensor_observed_at,"load_average":load_average(),"cpu_percent":round(cpu,1),
                  "cpu_freq_mhz":round(cpu_freq_mhz()),"temperature_c":round(temp,1),
                  "memory_percent":round(memory_calculated if memory_total else mem,1),
                  "memory_total_bytes":memory_total,"memory_used_bytes":memory_used,
                  "memory_available_bytes":memory_available,
-                  "disk_percent":round(disk,1),"disk_total_bytes":disk_total,
+                  "storage_observed_at":storage_cache.observed_at,
+                  "storage_inventory":disks,"storage_inventory_observed_at":storage_inventory.observed_at,
+                  "storage_inventory_error":storage_inventory.error,
+                  "storage_scanned_at":storage_inventory.scanned_at,"storage_discovery_mode":"manual",
+                  "disk_percent":round(disk,1) if disk is not None else None,"disk_total_bytes":disk_total,
                  "disk_used_bytes":disk_used,"disk_free_bytes":disk_free,
-                  "root_readonly":bool(fs_readonly),"fan_level":fan_level,"fan_name":FAN_NAME[fan_level]},
+                  "root_readonly":bool(fs_readonly)},
        "power":health,
-        "network":{"interface":net_iface,"kind":net_kind,"metric":net_metric,
+        "network":{"observed_at":network_observed_at,"interface":net_iface,"kind":net_kind,"metric":net_metric,
+                   "link_speed_mbps":net_speed_mbps,
+                   "rx_bytes_per_second":net_rx_bytes_per_second,
+                   "tx_bytes_per_second":net_tx_bytes_per_second,
                   "signal_percent":signal,
                   "ip_label":ip_label,"ip":ip,"link":bool(link_ok),"internet":bool(net_ok)},
        "watches":[{"type":w[0],"name":w[1],"target":w[2],"up":bool(ok)}
                   for w,ok in zip(watches,watch_state)],
        "display":display_state,
-        "agent":{"loop_errors":agent["loop_errors"],"i2c_errors":agent["i2c_errors"]},
+        "agent":{"loop_errors":agent["loop_errors"]},
+        "plugins":publisher.current_status(),
    }
+    publisher.publish(state)
    path=Path(STATUS_PATH); path.parent.mkdir(mode=0o755,parents=True,exist_ok=True)
    temporary=path.with_suffix(".tmp")
    temporary.write_text(json.dumps(state,ensure_ascii=False,separators=(",",":")))
@@ -808,18 +481,18 @@ args=parser.parse_args()
 if args.diagnose: raise SystemExit(diagnose())

 watch_state=[]
-last_sensor=last_render=last_status=0.0
+last_sensor=last_status=0.0
 last_net=last_watch=last_health=0.0
+monitor_ready_at=time.monotonic()+STARTUP_GRACE_SECONDS
 health={}; fs_readonly=False
-agent={"last_sensor_ok":0.0,"last_network_ok":0.0,"last_watch_ok":0.0,"last_health_ok":0.0,"loop_errors":0,"i2c_errors":0}
+agent={"last_sensor_ok":0.0,"last_network_ok":0.0,"last_watch_ok":0.0,"last_health_ok":0.0,"loop_errors":0}
 event_state={}
 history_logged=set()
 latest=(0.0,0.0,0.0,0.0)
-display=DisplayController()
+alert_manager=AlertManager()
+publisher=Publisher({k:v for k,v in registered(cfg).items() if not cfg.getboolean("plugin_paused",k,fallback=False)},DEVICE_ID,log)
 try:
-    bus=SMBus(1)
-    FONT5=Path(FONT_PATH).read_bytes()
-    display.start(); apply_dark_mode()
+    apply_dark_mode()
    log("INFO","START",version=APP_VERSION,uptime=uptime_seconds())
    while running:
        try:
@@ -831,11 +504,27 @@ try:
            if now-last_sensor >= SENSOR_INTERVAL:
                sample_elapsed=now-last_sensor if last_sensor else 0.0
                c=cpu_pct(); t=temp_c(); m=mem_pct(); d=disk_pct()
-                latest=(c,t,m,d); update_fan(t); last_sensor=now; agent["last_sensor_ok"]=now
+                latest=(c,t,m,d); sensor_observed_at=int(time.time()); last_sensor=now; agent["last_sensor_ok"]=now

-            if now-last_net >= NETWORK_INTERVAL:
+            if now>=monitor_ready_at and now-last_net >= NETWORK_INTERVAL:
                old_id=(net_iface,ip)
-                net_iface,net_kind,net_metric,ip_label,ip=primary_network(); link_ok=ip!="NO IP"; net_ok=internet() if link_ok else False
+                net_iface,net_kind,net_metric,net_speed_mbps,ip_label,ip=primary_network()
+                net_rx_bytes_per_second,net_tx_bytes_per_second=network_rates.sample(net_iface,now)
+                network_observed_at=int(time.time())
+                raw_link_ok=ip!="NO IP"; raw_net_ok=internet() if raw_link_ok else False
+                if raw_link_ok:
+                    link_failure_since=None;link_ok=True
+                else:
+                    if link_failure_since is None:link_failure_since=now
+                    link_ok=now-link_failure_since>=NETWORK_FAILURE_SECONDS
+                    link_ok=not link_ok
+                if not raw_link_ok:
+                    internet_failure_since=None;net_ok=True
+                elif raw_net_ok:
+                    internet_failure_since=None;net_ok=True
+                else:
+                    if internet_failure_since is None:internet_failure_since=now
+                    net_ok=not (now-internet_failure_since>=NETWORK_FAILURE_SECONDS)
                new_id=(net_iface,ip)
                if new_id!=old_id:
                    log("INFO","NET_SWITCH",old_if=old_id[0],old_ip=old_id[1],new_if=net_iface,new_ip=ip)
@@ -843,7 +532,7 @@ try:
                transition("internet_down",link_ok and not net_ok,"INTERNET_DOWN","INTERNET_RECOVERED",iface=net_iface,ip=ip)
                last_net=now; agent["last_network_ok"]=now

-            if now-last_watch >= SERVICE_INTERVAL:
+            if now>=monitor_ready_at and now-last_watch >= SERVICE_INTERVAL:
                watch_state=[check_watch(w) for w in watches]
                for w,ok in zip(watches,watch_state):
                    transition("watch:"+w[0]+":"+w[1],not ok,"WATCH_DOWN","WATCH_RECOVERED",name=w[1],target=w[2])
@@ -864,13 +553,7 @@ try:
                agent["last_health_ok"]=now; last_health=now

            c,t,m,d=latest
-            display.update_home(c,t,m,d)
-            display.begin_update()
-            try: update_active_alerts(c,t,m,d,sample_elapsed)
-            finally: display.end_update()
-            if now-last_render >= OLED_REFRESH:
-                display.refresh()
-                last_render=now
+            update_active_alerts(c,t,m,d,sample_elapsed)
            if now-last_status >= 1.0:
                write_status(c,t,m,d); last_status=now

@@ -1,18 +1,21 @@
 #!/usr/bin/env python3
+import sys
+sys.path.append("/usr/local/share/pigway-pi-control")
+from plugin_api import discover,registered,request as plugin_request,socket_path
 import configparser,ipaddress,json,re,secrets,shutil,subprocess,threading,time,socket
 from concurrent.futures import ThreadPoolExecutor,as_completed
 from http import HTTPStatus
 from http.server import BaseHTTPRequestHandler,ThreadingHTTPServer
 from pathlib import Path
+STORAGE_SCAN_LOCK=threading.Lock()
 from urllib.parse import parse_qs,urlencode,urlparse
 from urllib.request import Request,urlopen

-APP_VERSION="3.7.0"
+APP_VERSION="3.11.2"
 CFG=Path("/etc/pigway-pi-control.conf")
 STATUS=Path("/run/pigway-pi-control/status.json")
 TOKEN=Path("/etc/pigway-pi-control-api.token")
-WEB=Path("/usr/local/share/pigway-pi-control/web/index.html")
-ALLOWED_SECTIONS={"device","hosts","services","processes","alerts","fan","led","timing","dark_mode","display","api"}
+ALLOWED_SECTIONS={"device","services","processes","alerts","timing","dark_mode","api","storage_names","storage_visible"}
 NAME_RE=re.compile(r"^[A-Za-z0-9_.-]{1,64}$")
 UNIT_RE=re.compile(r"^[A-Za-z0-9_.@:-]{1,128}\.service$")
 RGB_KEY_RE=re.compile(r"^(cpu|power|memory|storage|network|service|normal)_[rgb]$")
@@ -21,6 +24,40 @@ NORMAL_MODES={"off","solid","flash","flow","breathe","marquee","rainbow","colorf
 EFFECT_COLORS={"red","green","blue","yellow","purple","cyan","white"}
 PROTECTED_UNITS={"pigway-pi-control-api.service"}

+def plugin_inventory():
+    cfg=load_cfg();items=discover(cfg)
+    for item in items:item["paused"]=cfg.getboolean("plugin_paused",item["id"],fallback=False)
+    return items
+
+
+def find_plugin(plugin_id):
+    for item in plugin_inventory():
+        if item["id"]==plugin_id:return item
+    raise ValueError("unknown plugin")
+
+
+def plugin_operation(body):
+    plugin_id=str(body.get("id",""))
+    if not NAME_RE.fullmatch(plugin_id):raise ValueError("invalid plugin id")
+    item=find_plugin(plugin_id);operation=body.get("operation")
+    if operation=="link":
+        if not item["online"]:raise ValueError("plugin is offline")
+        text=replace_ini_value("plugins",plugin_id,socket_path(item["socket"]))
+        save_ini_text(text,"plugin-link")
+        text=replace_ini_value("plugin_paused",plugin_id,"false")
+    elif operation in {"pause","resume","unlink"}:
+        if not item["linked"]:raise ValueError("plugin is not linked")
+        text=replace_ini_value("plugins",plugin_id,None) if operation=="unlink" else replace_ini_value("plugin_paused",plugin_id,"true" if operation=="pause" else "false")
+    else:raise ValueError("invalid plugin operation")
+    backup=save_ini_text(text,"plugin")
+    # Only reload a monitor that is already running. Never start hardware here.
+    subprocess.run(["systemctl","try-restart","pigway-pi-control.service"],check=True,timeout=15)
+    if operation in {"pause","unlink"}:
+        try:plugin_request(item["socket"],"DELETE","/v1/state",{})
+        except Exception:pass  # An offline plugin expires its lease independently.
+    return {"ok":True,"backup":backup}
+
+
 def machine_identity():
    cfg=load_cfg(); identifier=cfg.get("device","identifier",fallback="auto").strip()
    if not identifier or identifier.lower()=="auto": identifier=socket.gethostname()
@@ -28,60 +65,6 @@ def machine_identity():
    if name.lower()=="auto": name=identifier
    return {"id":identifier,"name":name,"hostname":socket.gethostname(),"local":True,"url":""}

-def normalize_url(value):
-    parsed=urlparse(str(value).strip())
-    if parsed.scheme not in {"http","https"} or not parsed.hostname or parsed.username or parsed.password:
-        raise ValueError("host URL must be an http(s) URL without credentials")
-    return f"{parsed.scheme}://{parsed.netloc}".rstrip("/")
-
-def host_registry():
-    local=machine_identity(); result=[local]
-    cfg=load_cfg()
-    if cfg.has_section("hosts"):
-        for host_id,url in cfg.items("hosts"):
-            try: base=normalize_url(url)
-            except ValueError: continue
-            if host_id==local["id"]: continue
-            result.append({"id":host_id,"name":host_id,"hostname":"","local":False,"url":base})
-    return result
-
-def find_host(host_id):
-    for host in host_registry():
-        if host["id"]==host_id:return host
-    raise ValueError("unknown host")
-
-def remote_json(base,path,method="GET",payload=None,token=""):
-    data=None if payload is None else json.dumps(payload,separators=(",",":")).encode()
-    headers={"Accept":"application/json"}
-    if data is not None: headers["Content-Type"]="application/json"
-    if token: headers["Authorization"]=f"Bearer {token}"
-    request=Request(base+path,data=data,headers=headers,method=method)
-    with urlopen(request,timeout=5) as response:
-        return json.loads(response.read())
-
-def fleet_status():
-    hosts=host_registry(); results=[]
-    try:
-        status=json.loads(STATUS.read_text())
-        status.setdefault("machine",machine_identity())
-        results.append({"host":hosts[0],"online":True,"status":status})
-    except Exception as exc:
-        results.append({"host":hosts[0],"online":False,"error":str(exc)})
-    def fetch(host):
-        try:
-            status=remote_json(host["url"],"/api/v1/status")
-            machine=status.get("machine",{})
-            merged={**host,"name":machine.get("name") or host["name"],"hostname":machine.get("hostname","")}
-            return {"host":merged,"online":True,"status":status}
-        except Exception as exc:return {"host":host,"online":False,"error":str(exc)}
-    peers=hosts[1:]
-    with ThreadPoolExecutor(max_workers=min(8,max(1,len(peers)))) as pool:
-        futures=[pool.submit(fetch,h) for h in peers]
-        for future in as_completed(futures): results.append(future.result())
-    order={h["id"]:i for i,h in enumerate(hosts)}
-    results.sort(key=lambda x:order.get(x["host"]["id"],999))
-    return {"hosts":results,"timestamp":int(time.time())}
-
 def load_cfg():
    cfg=configparser.ConfigParser(); cfg.read(CFG)
    return cfg
@@ -92,12 +75,29 @@ def api_setting(key,default,cast=str):

 def config_json():
    cfg=load_cfg()
-    return {section:dict(cfg.items(section)) for section in cfg.sections() if section in ALLOWED_SECTIONS}
+    return {section:{k:v for k,v in cfg.items(section,raw=True) if not (section=="timing" and k in {"oled_refresh_interval","page_interval"})} for section in cfg.sections() if section in ALLOWED_SECTIONS}

 def validate_value(section,key,value,existing):
-    if section not in {"services","processes","hosts"} and key not in existing.get(section,set()):
+    if section in {"storage_names","storage_visible"}:
+        if not re.fullmatch(r"[a-f0-9]{32}",key):raise ValueError("invalid storage identifier")
+        if section=="storage_visible":
+            if value.lower() not in {"true","false"}:raise ValueError("visibility must be true or false")
+        elif len(value)>64 or any(ord(c)<32 for c in value):
+            raise ValueError("storage name must be at most 64 characters without control characters")
+        return
+    if section=="api" and key=="enabled":
+        if value.lower() not in {"true","false"}:raise ValueError("enabled must be true or false")
+        return
+    if section=="timing" and key in {"oled_refresh_interval","page_interval"}:raise ValueError("display timing is managed by the hardware plugin")
+    if section not in {"services","processes"} and key not in existing.get(section,set()):
        raise ValueError(f"unsupported option: {section}.{key}")
-    if RGB_KEY_RE.fullmatch(key):
+    if section=="hardware" and key=="cooling_hat_enabled":
+        if value.lower() not in ("true","false"): raise ValueError("cooling_hat_enabled must be true or false")
+    elif section=="led" and key=="alert_mode":
+        if value.lower() not in ("breathe","flash"): raise ValueError("alert_mode must be breathe or flash")
+    elif section=="led" and key=="custom_min_hold_ms":
+        if not 1500<=int(value)<=60000: raise ValueError("custom_min_hold_ms must be 1500..60000")
+    elif RGB_KEY_RE.fullmatch(key):
        number=int(value)
        if not 0<=number<=255: raise ValueError(f"{key} must be 0..255")
    elif FLASH_KEY_RE.fullmatch(key):
@@ -119,19 +119,20 @@ def validate_value(section,key,value,existing):
        ipaddress.ip_address(value)
    elif section=="device" and key=="identifier" and value.lower()!="auto" and not NAME_RE.fullmatch(value):
        raise ValueError("device.identifier must be auto or 1..64 letters, numbers, dot, underscore or dash")
-    elif section=="hosts":
-        normalize_url(value)
+

 def replace_ini_value(section,key,value):
-    text=CFG.read_text()
-    section_match=re.search(rf"(?mi)^\[{re.escape(section)}\]\s*$",text)
+    return replace_ini_text(CFG.read_text(),section,key,value)
+
+def replace_ini_text(text,section,key,value):
+    section_match=re.search(rf"(?mi)^\[{re.escape(section)}\][ \t]*$",text)
    if not section_match:
        if value is not None: text=text.rstrip()+f"\n\n[{section}]\n{key} = {value}\n"
        return text
-    next_section=re.search(r"(?m)^\[.+\]\s*$",text[section_match.end():])
+    next_section=re.search(r"(?m)^\[[^\]\r\n]+\]",text[section_match.end():])
    end=section_match.end()+(next_section.start() if next_section else len(text)-section_match.end())
    chunk=text[section_match.end():end]
-    key_match=re.search(rf"(?mi)^\s*{re.escape(key)}\s*=.*(?:\n|$)",chunk)
+    key_match=re.search(rf"(?mi)^[ \t]*{re.escape(key)}\s*=.*(?:\n|$)",chunk)
    if key_match:
        start=section_match.end()+key_match.start(); stop=section_match.end()+key_match.end()
        return text[:start]+((f"{key} = {value}\n") if value is not None else "")+text[stop:]
@@ -145,15 +146,6 @@ def save_ini_text(text,prefix="api"):
    temporary=CFG.with_suffix(".tmp"); temporary.write_text(text); temporary.chmod(0o644); temporary.replace(CFG)
    return str(backup)

-def edit_host(operation,host_id,url=""):
-    if operation not in {"save","delete"}: raise ValueError("invalid host operation")
-    if not NAME_RE.fullmatch(host_id): raise ValueError("invalid host identifier")
-    local=machine_identity()["id"]
-    if host_id==local: raise ValueError("local host cannot be changed in the remote host list")
-    if operation=="save": url=normalize_url(url)
-    text=replace_ini_value("hosts",host_id,url if operation=="save" else None)
-    return save_ini_text(text,"hosts")
-
 def update_ini(updates):
    if not isinstance(updates,dict): raise ValueError("updates must be an object")
    text=CFG.read_text()
@@ -169,11 +161,11 @@ def update_ini(updates):
            if not value or len(value)>256 or any(c in value for c in "\r\n\x00"):
                raise ValueError(f"invalid value: {section}.{key}")
            validate_value(section,str(key),value,existing)
-            section_match=re.search(rf"(?mi)^\[{re.escape(section)}\]\s*$",text)
+            section_match=re.search(rf"(?mi)^\[{re.escape(section)}\][ \t]*$",text)
            if not section_match:
                text=text.rstrip()+f"\n\n[{section}]\n{key} = {value}\n"
                continue
-            next_section=re.search(r"(?m)^\[.+\]\s*$",text[section_match.end():])
+            next_section=re.search(r"(?m)^\[[^\]\r\n]+\]",text[section_match.end():])
            end=section_match.end()+(next_section.start() if next_section else len(text)-section_match.end())
            chunk=text[section_match.end():end]
            key_match=re.search(rf"(?mi)^(\s*{re.escape(str(key))}\s*=\s*).*$",chunk)
@@ -224,50 +216,6 @@ def journal_query(since=None,until=None,severity="",event="",search="",sort="tim
    return {"logs":rows[offset:offset+limit],"total":total,"offset":offset,"limit":limit,
            "event_types":event_types,"retention":"systemd-journal"}

-def fleet_journal_query(since=None,until=None,severity="",event="",search="",machine="",
-                        sort="timestamp",order="desc",limit=100,offset=0):
-    hosts=host_registry(); rows=[]; event_types=set(); machines=[]
-    def decorate(payload,host):
-        machine_info=payload.get("machine") or {"id":host["id"],"name":host["name"]}
-        host_id=machine_info.get("id") or host["id"]
-        host_name=machine_info.get("name") or host["name"]
-        decorated=[]
-        for row in payload.get("logs",[]):
-            decorated.append({**row,"machine_id":host_id,"machine_name":host_name})
-        return decorated,set(payload.get("event_types",[])),{"id":host_id,"name":host_name}
-    local_payload=journal_query(since,until,severity,event,search,"timestamp","desc",50000,0)
-    local_payload["machine"]=machine_identity()
-    local_rows,local_events,local_machine=decorate(local_payload,hosts[0])
-    rows.extend(local_rows); event_types.update(local_events); machines.append(local_machine)
-    query={"limit":50000,"offset":0,"sort":"timestamp","order":"desc"}
-    for key,value in (("since",since),("until",until),("severity",severity),("event",event),("search",search)):
-        if value not in (None,""): query[key]=value
-    def fetch(host):
-        payload=remote_json(host["url"],"/api/v1/logs?"+urlencode(query))
-        try:
-            status=remote_json(host["url"],"/api/v1/status")
-            payload["machine"]=status.get("machine",{})
-        except Exception: pass
-        return decorate(payload,host)
-    peers=hosts[1:]
-    with ThreadPoolExecutor(max_workers=min(8,max(1,len(peers)))) as pool:
-        futures=[pool.submit(fetch,h) for h in peers]
-        for future in as_completed(futures):
-            try:
-                remote_rows,remote_events,remote_machine=future.result()
-                rows.extend(remote_rows); event_types.update(remote_events); machines.append(remote_machine)
-            except Exception: pass
-    if machine: rows=[row for row in rows if row["machine_id"]==machine]
-    severity_rank={"EMERGENCY":0,"ALERT":1,"CRITICAL":2,"ERROR":3,"WARN":4,"NOTICE":5,"INFO":6,"DEBUG":7}
-    keys={"timestamp":lambda x:x["timestamp"],"severity":lambda x:severity_rank.get(x["severity"],99),
-          "event":lambda x:x["event"],"message":lambda x:x["message"],
-          "machine":lambda x:(x["machine_name"],x["machine_id"])}
-    rows.sort(key=keys[sort],reverse=order=="desc")
-    total=len(rows)
-    return {"logs":rows[offset:offset+limit],"total":total,"offset":offset,"limit":limit,
-            "event_types":sorted(event_types),"machines":sorted(machines,key=lambda x:(x["name"],x["id"])),
-            "retention":"systemd-journal"}
-
 def service_inventory():
    cfg=load_cfg()
    monitored={target.lower():(name,target) for name,target in cfg.items("services")} if cfg.has_section("services") else {}
@@ -308,14 +256,14 @@ def edit_service_monitor(operation,name,target,note="",previous_name=""):
    text=CFG.read_text()
    def change(section,key,value):
        nonlocal text
-        section_match=re.search(rf"(?mi)^\[{re.escape(section)}\]\s*$",text)
+        section_match=re.search(rf"(?mi)^\[{re.escape(section)}\][ \t]*$",text)
        if not section_match:
            if value is not None: text=text.rstrip()+f"\n\n[{section}]\n{key} = {value}\n"
            return
-        next_section=re.search(r"(?m)^\[.+\]\s*$",text[section_match.end():])
+        next_section=re.search(r"(?m)^\[[^\]\r\n]+\]",text[section_match.end():])
        end=section_match.end()+(next_section.start() if next_section else len(text)-section_match.end())
        chunk=text[section_match.end():end]
-        key_match=re.search(rf"(?mi)^\s*{re.escape(key)}\s*=.*(?:\n|$)",chunk)
+        key_match=re.search(rf"(?mi)^[ \t]*{re.escape(key)}\s*=.*(?:\n|$)",chunk)
        if key_match:
            start=section_match.end()+key_match.start(); stop=section_match.end()+key_match.end()
            text=text[:start]+((f"{key} = {value}\n") if value is not None else "")+text[stop:]
@@ -340,6 +288,34 @@ def edit_service_monitor(operation,name,target,note="",previous_name=""):
    subprocess.run(["systemctl","restart","pigway-pi-control.service"],check=True,timeout=10)
    return str(backup)

+def process_monitors():
+    cfg=load_cfg(); result=[]
+    for name,target in cfg.items("processes"):
+        target=target.strip()
+        if not target: continue
+        up=subprocess.run(["pgrep","-f","--",target],stdout=subprocess.DEVNULL,
+                          stderr=subprocess.DEVNULL,timeout=2).returncode==0
+        result.append({"name":name.upper(),"target":target,"up":up})
+    return result
+
+def edit_process_monitor(operation,name,target="",previous_name=""):
+    if operation not in {"save","delete"}: raise ValueError("invalid process monitor operation")
+    if not NAME_RE.fullmatch(name): raise ValueError("invalid process monitor name")
+    if previous_name and not NAME_RE.fullmatch(previous_name): raise ValueError("invalid previous process monitor name")
+    if operation=="save" and (not target or len(target)>256 or any(c in target for c in "\r\n\x00")):
+        raise ValueError("invalid process match expression")
+    text=CFG.read_text()
+    if operation=="delete":
+        if not load_cfg().has_option("processes",name): raise ValueError("process monitor not found")
+        text=replace_ini_text(text,"processes",name,None)
+    else:
+        if previous_name and previous_name.lower()!=name.lower(): text=replace_ini_text(text,"processes",previous_name,None)
+        text=replace_ini_text(text,"processes",name,target)
+    parsed=configparser.ConfigParser(); parsed.read_string(text)
+    backup=save_ini_text(text,"api")
+    subprocess.run(["systemctl","restart","pigway-pi-control.service"],check=True,timeout=10)
+    return backup
+
 def control_service(unit,action):
    if not UNIT_RE.fullmatch(unit): raise ValueError("invalid systemd service name")
    if action not in {"start","stop"}: raise ValueError("action must be start or stop")
@@ -378,19 +354,13 @@ class Handler(BaseHTTPRequestHandler):
    def do_GET(self):
        parsed=urlparse(self.path)
        try:
-            if parsed.path=="/":
-                data=WEB.read_bytes(); self.send_response(200); self.send_header("Content-Type","text/html; charset=utf-8")
-                self.send_header("Content-Length",str(len(data))); self.security_headers(); self.end_headers(); self.wfile.write(data); return
+            if not self.authorized():self.send_json(401,{"error":"bearer token required"});return
            if parsed.path=="/api/v1/health":
-                self.send_json(200,{"ok":True,"version":APP_VERSION,"status_available":STATUS.exists()}); return
-            if parsed.path=="/api/v1/hosts":
-                self.send_json(200,{"hosts":host_registry()}); return
-            if parsed.path=="/api/v1/fleet/status":
-                self.send_json(200,fleet_status()); return
+                self.send_json(200,{"ok":True,"version":APP_VERSION,"status_available":STATUS.exists()});return
            if parsed.path=="/api/v1/status":
                if not STATUS.exists(): self.send_json(503,{"error":"agent status unavailable"}); return
                self.send_json(200,json.loads(STATUS.read_text())); return
-            if parsed.path in {"/api/v1/logs","/api/v1/fleet/logs"}:
+            if parsed.path=="/api/v1/logs":
                query=parse_qs(parsed.query)
                value=lambda key,default="":query.get(key,[default])[0]
                limit=min(max(int(value("limit",api_setting("log_limit",200,int))),1),50000)
@@ -400,58 +370,51 @@ class Handler(BaseHTTPRequestHandler):
                if since is not None and until is not None and since>until: raise ValueError("since must not be after until")
                sort=value("sort","timestamp"); order=value("order","desc")
                allowed_sort={"timestamp","severity","event","message"}
-                if parsed.path=="/api/v1/fleet/logs": allowed_sort.add("machine")
                if sort not in allowed_sort: raise ValueError("invalid log sort")
                if order not in {"asc","desc"}: raise ValueError("invalid log order")
                severity=value("severity").upper(); event=value("event"); search=value("search")
                if len(event)>80 or len(search)>120: raise ValueError("log filter is too long")
-                if parsed.path=="/api/v1/fleet/logs":
-                    self.send_json(200,fleet_journal_query(since,until,severity,event,search,value("machine"),sort,order,limit,offset)); return
                self.send_json(200,journal_query(since,until,severity,event,search,sort,order,limit,offset)); return
+            if parsed.path in {"/api/v1/plugins","/api/v1/plugin/config"}:
+                query=parse_qs(parsed.query);host_id=query.get("host",[""])[0]
+                plugin_id=query.get("id",[""])[0]
+                if parsed.path.endswith("/plugins"):
+                    self.send_json(200,{"plugins":plugin_inventory()});return
+                item=find_plugin(plugin_id)
+                self.send_json(200,plugin_request(item["socket"],"GET","/v1/config"));return
            if parsed.path=="/api/v1/config":
                query=parse_qs(parsed.query); host_id=query.get("host",[""])[0]
-                if host_id and host_id!=machine_identity()["id"]:
-                    host=find_host(host_id); self.send_json(200,remote_json(host["url"],"/api/v1/config")); return
                self.send_json(200,{"config":config_json(),"write_requires_token":True,"machine":machine_identity()}); return
            if parsed.path=="/api/v1/services":
                query=parse_qs(parsed.query); host_id=query.get("host",[""])[0]
-                if host_id and host_id!=machine_identity()["id"]:
-                    host=find_host(host_id); self.send_json(200,remote_json(host["url"],"/api/v1/services")); return
                self.send_json(200,{"services":service_inventory(),"machine":machine_identity()}); return
+            if parsed.path=="/api/v1/processes":
+                self.send_json(200,{"processes":process_monitors(),"machine":machine_identity()}); return
            self.send_json(404,{"error":"not found"})
        except ValueError as e: self.send_json(400,{"error":str(e)})
        except Exception as e: self.send_json(500,{"error":str(e)})

    def do_PUT(self):
        path=urlparse(self.path).path
-        if path not in {"/api/v1/config","/api/v1/services","/api/v1/services/control","/api/v1/hosts","/api/v1/fleet/config"}: self.send_json(404,{"error":"not found"}); return
+        if path=="/api/v1/storage/scan":
+            if not self.authorized():self.send_json(401,{"error":"bearer token required"});return
+            try:
+                from storage_cache import StorageInventory
+                with STORAGE_SCAN_LOCK:
+                    result=StorageInventory(cache_path=CFG.with_suffix(".storage.json")).scan()
+                self.send_json(200,result)
+            except Exception:
+                self.send_json(503,{"error":"storage scan failed; previous inventory retained"})
+            return
+        if path not in {"/api/v1/plugins","/api/v1/plugin/config","/api/v1/config","/api/v1/services","/api/v1/services/control","/api/v1/processes"}: self.send_json(404,{"error":"not found"}); return
        if not self.authorized(): self.send_json(401,{"error":"bearer token required"}); return
        try:
            body=self.read_json()
-            if path=="/api/v1/hosts":
-                backup=edit_host(str(body.get("operation","")),str(body.get("id","")),str(body.get("url","")))
-                self.send_json(200,{"ok":True,"backup":backup,"hosts":host_registry()}); return
-            if path=="/api/v1/fleet/config":
-                updates=body.get("updates"); targets=body.get("targets",[]); tokens=body.get("tokens",{})
-                if not isinstance(targets,list) or not targets or len(targets)>32: raise ValueError("targets must contain 1..32 host identifiers")
-                if not isinstance(tokens,dict): raise ValueError("tokens must be an object")
-                results=[]; local_id=machine_identity()["id"]; restart_local_api=False
-                for host_id in dict.fromkeys(str(x) for x in targets):
-                    try:
-                        if host_id==local_id:
-                            backup=update_ini(updates)
-                            subprocess.run(["systemctl","restart","pigway-pi-control.service"],check=True,timeout=10)
-                            restart_local_api="api" in updates
-                            results.append({"id":host_id,"ok":True,"backup":backup})
-                        else:
-                            host=find_host(host_id); token=str(tokens.get(host_id,""))
-                            if not token: raise ValueError("remote bearer token required")
-                            response=remote_json(host["url"],"/api/v1/config","PUT",{"updates":updates},token)
-                            results.append({"id":host_id,"ok":True,"backup":response.get("backup","")})
-                    except Exception as exc: results.append({"id":host_id,"ok":False,"error":str(exc)})
-                self.send_json(200,{"ok":all(x["ok"] for x in results),"results":results})
-                if restart_local_api: threading.Timer(0.2,self.server.shutdown).start()
-                return
+            if path in {"/api/v1/plugins","/api/v1/plugin/config"}:
+                host_id=str(body.get("host",""))
+                if path.endswith("/plugins"):self.send_json(200,plugin_operation(body));return
+                item=find_plugin(str(body.get("id","")))
+                self.send_json(200,plugin_request(item["socket"],"PUT","/v1/config",{"updates":body.get("updates")}));return
            if path=="/api/v1/services/control":
                control_service(str(body.get("unit","")),str(body.get("action","")))
                print(f"SERVICE_CONTROL action={body.get('action')} unit={body.get('unit')}",flush=True)
@@ -462,6 +425,11 @@ class Handler(BaseHTTPRequestHandler):
                                            str(body.get("previous_name","")))
                print(f"SERVICE_MONITOR_UPDATED operation={body.get('operation')} target={body.get('target')} backup={backup}",flush=True)
                self.send_json(200,{"ok":True,"backup":backup}); return
+            if path=="/api/v1/processes":
+                backup=edit_process_monitor(str(body.get("operation","")),str(body.get("name","")),
+                                            str(body.get("target","")),str(body.get("previous_name","")))
+                print(f"PROCESS_MONITOR_UPDATED operation={body.get('operation')} target={body.get('target')} backup={backup}",flush=True)
+                self.send_json(200,{"ok":True,"backup":backup}); return
            updates=body.get("updates")
            backup=update_ini(updates)
            subprocess.run(["systemctl","restart","pigway-pi-control.service"],check=True,timeout=10)
@@ -473,6 +441,8 @@ class Handler(BaseHTTPRequestHandler):
        except Exception as e: self.send_json(500,{"error":str(e)})

 def main():
+    if not load_cfg().getboolean("api","enabled",fallback=False):
+        print("API_DISABLED",flush=True);sys.exit(78)
    host=api_setting("bind","0.0.0.0")
    port=api_setting("port",6001,int)
    server=ThreadingHTTPServer((host,port),Handler)
@@ -0,0 +1,109 @@
+"""Hardware-independent client for the versioned local plugin API."""
+import copy
+from contextlib import closing
+import http.client
+import json
+import socket
+import threading
+import uuid
+from pathlib import Path
+
+PLUGIN_ROOT=Path('/run/pigway-plugins')
+
+
+def socket_path(value):
+    path=Path(value)
+    if not path.is_absolute() or '..' in path.parts or path.name!='api.sock' or PLUGIN_ROOT not in path.parents:
+        raise ValueError('plugin socket must be /run/pigway-plugins/<plugin>/api.sock')
+    return str(path)
+
+
+class Connection(http.client.HTTPConnection):
+    def __init__(self,path):
+        super().__init__('localhost',timeout=.8);self.path=socket_path(path)
+
+    def connect(self):
+        self.sock=socket.socket(socket.AF_UNIX,socket.SOCK_STREAM)
+        self.sock.settimeout(self.timeout)
+        try:self.sock.connect(self.path)
+        except Exception:self.sock.close();raise
+
+
+def request(path,method,endpoint,payload=None):
+    with closing(Connection(path)) as conn:
+        body=None if payload is None else json.dumps(payload,allow_nan=False).encode()
+        conn.request(method,endpoint,body,{'Content-Type':'application/json'})
+        response=conn.getresponse();raw=response.read(262145)
+        if len(raw)>262144:raise ValueError('plugin response too large')
+        value=json.loads(raw)
+        if response.status>=400:raise ValueError(value.get('error','plugin request failed'))
+        return value
+
+
+def registered(cfg):
+    if not cfg.has_section('plugins'):return {}
+    return {k:socket_path(v) for k,v in cfg.items('plugins') if v.strip()}
+
+
+def discover(cfg):
+    linked=registered(cfg);paths={v for v in linked.values()}
+    paths.update(str(p) for p in PLUGIN_ROOT.glob('*/api.sock'))
+    result=[]
+    for path in sorted(paths)[:32]:
+        key=next((k for k,v in linked.items() if v==path),None)
+        try:
+            d=request(path,'GET','/v1/descriptor')
+            if d.get('api_version')!=1:raise ValueError('incompatible plugin API version')
+            status=request(path,'GET','/v1/status')
+            result.append({'id':key or d['id'],'socket':path,'linked':key is not None,'online':True,'descriptor':d,'status':status})
+        except Exception as exc:
+            result.append({'id':key or Path(path).parent.name,'socket':path,'linked':key is not None,'online':False,'error':str(exc)})
+    return result
+
+
+class Publisher:
+    """One replaceable snapshot, not an unbounded queue of animation commands."""
+    def __init__(self,plugins,source,log):
+        self.plugins=plugins;self.source=source;self.log=log
+        self.session=str(uuid.uuid4());self.revision=0;self.snapshot=None
+        self.lock=threading.Lock();self.stop_event=threading.Event();self.status={}
+        self.threads=[threading.Thread(target=self.run,args=(key,path),name='plugin-'+key,daemon=True)
+                      for key,path in plugins.items()]
+        for thread in self.threads:thread.start()
+
+    def publish(self,state):
+        with self.lock:self.snapshot=copy.deepcopy(state)
+
+    def current_status(self):
+        with self.lock:return copy.deepcopy(self.status)
+
+    def run(self,key,path):
+        previous_error=None;revision=0;descriptor=None
+        while not self.stop_event.is_set():
+            with self.lock:state=self.snapshot
+            if state is not None:
+                revision+=1
+                payload={'api_version':1,'source':self.source,'session':self.session,'revision':revision,
+                         'ttl_seconds':10,'system':state['system'],'network':state['network'],'alerts':state['display']['alerts']}
+                try:
+                    if descriptor is None:
+                        descriptor=request(path,'GET','/v1/descriptor')
+                        if descriptor.get('api_version')!=1:raise ValueError('incompatible plugin API version')
+                    request(path,'PUT','/v1/state',payload)
+                    status=request(path,'GET','/v1/status')
+                    with self.lock:self.status[key]={'online':True,'status':status,'name':descriptor.get('name',key),'capabilities':descriptor.get('capabilities',{})}
+                    if previous_error is not None:self.log('INFO','PLUGIN_RECOVERED',plugin=key)
+                    previous_error=None
+                except Exception as exc:
+                    descriptor=None
+                    error=str(exc)
+                    with self.lock:self.status[key]={'online':False,'error':error}
+                    if previous_error!=error:self.log('WARN','PLUGIN_UNAVAILABLE',plugin=key,error=error)
+                    previous_error=error
+            self.stop_event.wait(1)
+        try:request(path,'DELETE','/v1/state',{'source':self.source,'session':self.session})
+        except Exception:pass  # Server-side leases expire if transport is unavailable.
+
+    def close(self):
+        self.stop_event.set()
+        for thread in self.threads:thread.join()
@@ -0,0 +1,210 @@
+"""Daily filesystem capacity cache, persisted in RAM across monitor restarts."""
+import json
+import time
+from pathlib import Path
+from shutil import disk_usage
+
+class StorageInventory:
+    """Read host block devices without mounting, probing SMART, or writing disks."""
+
+    def __init__(self, clock=time.time, runner=None, mounts_path="/proc/1/mountinfo", usage=None, cache_path=None, capacity_path=None):
+        import subprocess
+        self.clock = clock
+        self.runner = runner or (lambda: subprocess.check_output(
+            ["lsblk", "--json", "--bytes", "--paths", "--output",
+             "NAME,KNAME,TYPE,SIZE,FSTYPE,UUID,LABEL,MODEL,SERIAL,MAJ:MIN"],
+            text=True, timeout=5, stderr=subprocess.DEVNULL))
+        self.mounts_path = Path(mounts_path)
+        self.usage = usage or (lambda mount: disk_usage("/proc/1/root" + mount))
+        self.next_update_at = 0
+        self.observed_at = None
+        self.error = False
+        self.devices = []
+        self.cache_path = Path(cache_path) if cache_path else None
+        self.scanned_at = None
+        self.capacity_path = Path(capacity_path) if capacity_path else None
+        if self.capacity_path:
+            try:
+                saved=json.loads(self.capacity_path.read_text())
+                at=saved['observed_at']
+                if isinstance(at,(int,float)) and 0 <= self.clock()-at < 604800 and isinstance(saved['devices'],list):
+                    self.devices=saved['devices'];self.observed_at=at
+                    self.scanned_at=saved['scanned_at'];self.next_update_at=at+604800
+            except (OSError,ValueError,KeyError,TypeError):pass
+
+    def scan(self):
+        if self.cache_path is None:
+            raise ValueError("storage inventory cache path required")
+        try:
+            previous = json.loads(self.cache_path.read_text())
+            if 0 <= self.clock() - previous["scanned_at"] < 60:
+                return {"accepted": True, "scanned_at": previous["scanned_at"], "cooldown": True}
+        except (OSError, ValueError, KeyError, TypeError):
+            pass
+        data = json.loads(self.runner())
+        self.discover(data)
+        document = {"scanned_at": self.clock(), "inventory": data}
+        temporary = self.cache_path.with_suffix(".tmp")
+        with open(temporary,"w",opener=lambda path, flags: __import__("os").open(path, flags, 0o600)) as file:
+            json.dump(document, file)
+        temporary.replace(self.cache_path)
+        return {"accepted": True, "scanned_at": document["scanned_at"], "cooldown": False}
+
+    def sample(self, config=None):
+        data = None
+        changed = False
+        if self.cache_path is not None:
+            try:
+                document = json.loads(self.cache_path.read_text())
+                changed = document["scanned_at"] != self.scanned_at
+                data = document["inventory"]
+                self.scanned_at = document["scanned_at"]
+            except FileNotFoundError:
+                pass
+            except (OSError, ValueError, KeyError, TypeError):
+                self.error = True
+        if data is not None and (changed or self.clock() >= self.next_update_at):
+            try:
+                self.devices = self.discover(data)
+                self.observed_at = self.clock()
+                self.error = False
+            except (OSError, ValueError, TypeError, KeyError, __import__("subprocess").SubprocessError):
+                self.error = True
+            self.next_update_at = self.clock() + (3600 if self.error else 604800)
+            if self.capacity_path and not self.error:
+                try:
+                    self.capacity_path.write_text(json.dumps(dict(devices=self.devices,observed_at=self.observed_at,scanned_at=self.scanned_at)))
+                except OSError:pass
+        names = dict(config.items("storage_names", raw=True)) if config is not None and config.has_section("storage_names") else {}
+        visible = dict(config.items("storage_visible", raw=True)) if config is not None and config.has_section("storage_visible") else {}
+        result = []
+        for device in self.devices:
+            item = dict(device)
+            item["name"] = names.get(item["id"], "auto")
+            if item["name"].lower() == "auto":
+                item["name"] = item["label"] or item["mountpoint"] or item["device"]
+            item["visible"] = visible.get(item["id"], "true").lower() != "false"
+            if self.error:
+                item["state"] = "unknown"
+            result.append(item)
+        known = {d["id"] for d in result}
+        for identifier in sorted((names.keys() | visible.keys()) - known):
+            result.append(dict(id=identifier, name=names.get(identifier, identifier),
+                               visible=visible.get(identifier, "true").lower() != "false",
+                               state="unknown" if self.error else "missing", device="", mountpoint="",
+                               label="", capacity_bytes=None, used_bytes=None, free_bytes=None,
+                               used_percent=None))
+        return result
+
+    def discover(self, data):
+        import hashlib
+        import re
+        mounts, sources = {}, {}
+        for line in self.mounts_path.read_text().splitlines():
+            left, right = line.split(" - ", 1)
+            fields = left.split()
+            # Bind mounts and Btrfs subvolumes must not duplicate filesystem capacity.
+            mount = re.sub(r"\\([0-7]{3})", lambda m: chr(int(m[1], 8)), fields[4])
+            row = (fields[3] != "/", len(mount), mount)
+            mounts.setdefault(fields[2], []).append(row)
+            source = right.split()[1]
+            if source.startswith("/dev/"):
+                sources.setdefault(str(Path(source).resolve()), []).append(row)
+        devices = data["blockdevices"]
+        if not isinstance(devices, list):
+            raise ValueError("invalid block device inventory")
+        result, seen = [], set()
+
+        def walk(device, serial="", parent=""):
+            kind = device.get("type")
+            if kind in {"loop", "rom", "zram"}:
+                return
+            serial = str(device.get("serial") or serial).strip()
+            children = device.get("children") or []
+            uuid = str(device.get("uuid") or "").strip()
+            fs = str(device.get("fstype") or "")
+            # A parent disk with partitions/RAID/LVM is represented by its usable leaves.
+            if not children and kind not in {"loop", "rom"} and fs not in {"swap", "linux_raid_member", "LVM2_member", "crypto_LUKS"}:
+                partition = re.search(r"(\d+)$", str(device.get("kname") or device.get("name") or ""))
+                suffix = ":" + partition[1] if kind == "part" and partition else ""
+                source = "uuid:" + uuid if uuid else "serial:" + serial + suffix if serial else "device:" + str(device.get("name"))
+                identifier = hashlib.sha256(source.encode()).hexdigest()[:32]
+                if identifier not in seen:
+                    seen.add(identifier)
+                    candidates = mounts.get(device.get("maj:min"), []) or sources.get(str(Path(device["name"]).resolve()), [])
+                    mount = sorted(candidates)[0][2] if candidates else ""
+                    item = dict(id=identifier, device=str(device.get("name") or ""),
+                                label=str(device.get("label") or ""), uuid=uuid,
+                                stable_identity=bool(uuid or serial), model=str(device.get("model") or "").strip(),
+                                mountpoint=mount, filesystem=fs, state="mounted" if mount else "unmounted",
+                                capacity_bytes=int(device.get("size") or 0), used_bytes=None,
+                                free_bytes=None, used_percent=None)
+                    if mount:
+                        try:
+                            usage = self.usage(mount)
+                            if usage.total <= 0:
+                                raise ValueError("invalid filesystem capacity")
+                            item.update(capacity_bytes=usage.total, used_bytes=usage.used,
+                                        free_bytes=usage.free, used_percent=round(100 * usage.used / usage.total, 1))
+                        except (OSError, ValueError):
+                            item["state"] = "unknown"
+                    result.append(item)
+            for child in children:
+                walk(child, serial, str(device.get("name") or parent))
+
+        for device in devices:
+            walk(device)
+        return sorted(result, key=lambda d: (d["mountpoint"] != "/", d["mountpoint"], d["device"]))
+
+
+
+class StorageCache:
+    def __init__(self, path, reader=disk_usage, clock=time.time):
+        self.path, self.reader, self.clock = Path(path), reader, clock
+        self.values = None
+        self.observed_at = None
+        self.next_update_at = 0
+        self.error = False
+        try:
+            data = json.loads(self.path.read_text())
+            if not isinstance(data,dict):raise ValueError('invalid cache')
+            retry = data.get('next_update_at')
+            if data.get('error') is True and isinstance(retry,(int,float)) and self.clock() < retry <= self.clock()+3600:
+                self.error, self.next_update_at = True, retry
+            values = data['values']
+            if all(isinstance(values[k], int) and not isinstance(values[k], bool) and values[k] >= 0 for k in ('total', 'used', 'free')) and values['total'] > 0 and values['used'] <= values['total']:
+                at = data['observed_at']
+                if isinstance(at, (int, float)) and 0 <= self.clock() - at < 90000:
+                    self.values, self.observed_at = values, at
+                    if not self.error:self.next_update_at = at + 604800
+        except (OSError, ValueError, KeyError, TypeError):
+            pass
+
+    def sample(self):
+        now = self.clock()
+        if now < self.next_update_at:
+            return self.values
+        try:
+            usage = self.reader('/')
+            if usage.total <= 0 or not 0 <= usage.used <= usage.total or usage.free < 0:
+                raise ValueError('invalid capacity')
+        except (OSError, ValueError):
+            self.error = True
+            self.next_update_at = now + 3600
+            self.persist()
+            return self.values
+        self.values = dict(total=usage.total, used=usage.used, free=usage.free)
+        self.observed_at = now
+        self.next_update_at = now + 604800
+        self.error = False
+        self.persist()
+        return self.values
+
+    def persist(self):
+        try:
+            self.path.parent.mkdir(parents=True, exist_ok=True)
+            self.path.write_text(json.dumps(dict(values=self.values, observed_at=self.observed_at,
+                                                next_update_at=self.next_update_at, error=self.error)))
+        except OSError:
+            # The in-memory sample remains valid even if the RAM cache cannot be persisted.
+            pass
@@ -1,48 +1,22 @@
-# =============================================================================
-# PIGWay Pi Control v3.7.0 - 用户配置文件
-# =============================================================================
-#
-# 正式安装后的配置路径：
-#   /etc/pigway-pi-control.conf
-#
-# 编辑：
-#   sudo nano /etc/pigway-pi-control.conf
-#
-# 保存后让配置生效：
-#   sudo systemctl restart pigway-pi-control
-#
-# 查看运行状态：
-#   systemctl status pigway-pi-control --no-pager -l
-#
-# 查看实时日志：
-#   journalctl -u pigway-pi-control -f
-#
-# 重要：
-# 1. 只建议修改本文件，不要直接修改 /usr/local/sbin/pigway-pi-control。
-# 2. “#” 开头是注释，不生效。要启用示例项，删除行首的 #。
-# 3. 数值单位和建议范围见每项上方注释。
-# 4. 配置写错导致服务无法启动时，可查看 journalctl 日志并修正本文件。
-# =============================================================================
-
+# PIGWay system monitoring. Hardware plugins are separately installed.
+# 系统监控不依赖散热板；在 Web 的硬件插件页面确认接入后才发送状态。
+[plugins]
+# No automatic attachment. Example (prefer Web discovery):
+# yahboom-cooling-hat = /run/pigway-plugins/yahboom-cooling-hat/api.sock

 [device]
 # 多机监控中使用的稳定机器标识。auto 表示读取本机 hostname。
-# 多台机器的 identifier 必须唯一；修改后重启硬件 Agent 和 API 服务。
+# 多台机器的 identifier 必须唯一；修改后重启监控 Agent 和 API 服务。
 identifier = auto

 # Web 页面显示名称。auto 表示使用 identifier。
 name = auto


-[hosts]
-# 在作为聚合入口的机器上登记其他节点，每行格式：
-# 唯一标识 = http://节点IP:6001
-# 示例：
-# living-room = http://192.168.1.20:6001
-
-
 [api]
-# API 与 Web 使用同一监听地址和端口。0.0.0.0 允许局域网访问；
+# 默认关闭远程 API。开启后所有请求均需令牌；本地监控和插件联动不受此开关影响。
+enabled = false
+# API 监听地址和端口。0.0.0.0 允许局域网访问；
 # 如只允许本机访问可改为 127.0.0.1。修改后重启 API 服务生效。
 bind = 0.0.0.0
 port = 6001
@@ -51,19 +25,10 @@ log_limit = 200

 [timing]
 # 传感器采样周期，单位：秒。
-# CPU / 内存 / 温度 / 磁盘以及风扇控制按此周期更新。
+# CPU / 内存 / 温度 / 磁盘按此周期更新。
 # 推荐：1。通常不要低于 1。
 sensor_interval = 1

-# OLED 当前页面刷新周期，单位：秒。
-# 这只是刷新当前页面数据，不负责切换页面。
-# 推荐：1。
-oled_refresh_interval = 1
-
-# OLED 在主页和当前告警页之间轮播的周期，单位：秒。
-# 页面切换只影响 OLED；RGB 始终由当前 Display Owner 决定。
-page_interval = 10
-
 # 网络状态检查周期，单位：秒。
 # 推荐：5。太短会产生不必要的网络探测。
 network_interval = 5
@@ -74,43 +39,16 @@ service_interval = 5

 # 本机健康检查周期，单位：秒。
 # 检查 Raspberry Pi 欠压/降频状态、根文件系统只读状态等。
-# 推荐：1。当前电源状态必须及时反映到 OLED/RGB；历史状态仅记录一次日志。
+# 推荐：1。当前电源状态及时更新告警与插件快照；历史状态仅记录一次日志。
 health_interval = 1

+# 开机后等待网络与被监控服务完成启动，再开始网络/服务告警检查。
+# 这不会延迟温度、电源、磁盘等本机健康检查。
+startup_grace_seconds = 15

-[fan]
-# 风扇温控档位，单位：摄氏度。
-#
-# 默认曲线：
-#   < 50°C     OFF
-#   50~53°C    L1
-#   53~56°C    L2
-#   56~59°C    L3
-#   59~62°C    L4
-#   >= 62°C    MAX
-#
-# 如希望更安静，可适当提高阈值；如更重视散热，可降低。
-# 建议保持 start < level2 < level3 < level4 < max。
-
-# 低于此温度，风扇完全停止。
-start = 50
-
-# L2 起始温度；start 到 level2 之间为 L1。
-level2 = 53
-
-# L3 起始温度。
-level3 = 56
-
-# L4 起始温度。
-level4 = 59
-
-# MAX 全速起始温度。
-max = 62
-
-# 降档回差，单位：°C。
-# 防止温度在临界值附近上下波动时风扇频繁升降档。
-# 推荐：1.0~2.0。
-hysteresis = 1.5
+# 网络或互联网必须连续失败达到此时间才产生告警。
+# 成功样本会立即清除等待状态，避免开机和链路切换瞬间误报。
+network_failure_seconds = 15


 [alerts]
@@ -152,7 +90,7 @@ disk_critical = 95
 # ---------------- Wi-Fi 信号 ----------------
 # 仅当 Wi-Fi 是 Linux 当前默认路由/主接口时生效。
 # RSSI 单位 dBm，越接近0越强；约 -50很好，-70一般，-80较弱。
-# 连续低于 wifi_weak 达到 wifi_weak_seconds 后触发蓝色告警。
+# 连续低于 wifi_weak 达到 wifi_weak_seconds 后触发弱信号告警。
 wifi_weak = -75

 # 已告警后恢复到该值以上才解除，形成滞回避免反复闪烁。
@@ -161,80 +99,10 @@ wifi_recover = -68
 # 弱信号持续多少秒才正式告警。
 wifi_weak_seconds = 30

-
-[led]
-# 正常运行、没有任何 active alert 时的 RGB 表现：
-#   off      = 全灭（默认，最安静且 I2C 写入最少）
-#   solid    = 三灯使用 normal_r/g/b 自定义颜色常亮
-#   flash    = 三灯使用 normal_r/g/b 和 normal_flash_*_ms 自定义颜色闪烁
-#   flow     = MCU 内置流水灯；使用有限颜色和速度
-#   breathe  = MCU 内置呼吸灯；使用有限颜色和速度
-#   marquee  = MCU 内置跑马灯；MCU 自行决定颜色变化
-#   rainbow  = MCU 内置彩虹灯；MCU 自行决定颜色变化
-#   colorful = MCU 内置炫彩灯；MCU 自行决定颜色变化
-# 任何 active alert 都会立即抢占正常效果；全部恢复后才重新应用这里的模式。
-normal_mode = off
-
-# solid / flash 自定义颜色，三通道范围均为 0..255。
-normal_r = 0
-normal_g = 0
-normal_b = 0
-
-# flash 亮灯/灭灯时间，单位毫秒；范围 50..60000。
-normal_flash_on_ms = 1000
-normal_flash_off_ms = 1000
-
-# MCU 内置效果速度：1=慢，2=中（默认），3=快。
-normal_effect_speed = 2
-# flow / breathe 可使用的 MCU 内置有限颜色：
-# red / green / blue / yellow / purple / cyan / white
-# marquee / rainbow / colorful 会忽略该颜色值。
-normal_effect_color = green
-
-# DisplayController 按集中定义的 priority 仲裁 owner。告警页显示时 RGB 同步显示
-# 该页对象；主页使用最高优先级 active owner。颜色表示对象，速度表示严重等级：
-#   CPU/频率/温度/散热 = 红色
-#   供电/欠压          = 橙色闪烁（实机校准，避免内置黄色偏绿）
-#   内存           = 紫色
-#   磁盘           = 白色
-#   网络/Wi-Fi     = 蓝色
-#   服务/进程      = 青色
-# 颜色通道范围为 0..255。以下是本机实测后的默认值。
-cpu_r = 255
-cpu_g = 0
-cpu_b = 0
-power_r = 255
-power_g = 40
-power_b = 0
-memory_r = 255
-memory_g = 0
-memory_b = 255
-storage_r = 255
-storage_g = 255
-storage_b = 255
-network_r = 0
-network_g = 0
-network_b = 255
-service_r = 0
-service_g = 255
-service_b = 96
-
-# 各严重等级可分别设置亮灯和灭灯时长，单位：毫秒，最小值 50。
-# 默认完整周期：Warning 3秒、Critical 1.5秒、Emergency 0.6秒。
-warning_flash_on_ms = 1500
-warning_flash_off_ms = 1500
-critical_flash_on_ms = 750
-critical_flash_off_ms = 750
-emergency_flash_on_ms = 300
-emergency_flash_off_ms = 300
-# 每次点亮使用 v3.2.0 已验证的 selector -> R -> G -> B 完整写入顺序，
-# 只在亮/灭边沿访问 MCU，不做高频软件 PWM。
-write_delay_ms = 10
-
-# v3.3.0 RC 期间使用过的 brightness、*_breathe_seconds、rgb_update_ms、
-# warning_color、critical_color、warning_flash_ms、critical_flash_ms 和
-# emergency_flash_ms
-# 可以继续留在现有配置中；硬件灯效引擎会安全忽略它们。
+# 有线网卡协商速率低于此值并持续 ethernet_speed_seconds 后告警，单位 Mbps。
+# Raspberry Pi 4/5 的千兆网口建议保持 1000；设为 0 可关闭速率告警。
+ethernet_min_speed_mbps = 1000
+ethernet_speed_seconds = 15


 [dark_mode]
@@ -276,11 +144,12 @@ pi_act_led = off
 # 修改后：
 #   sudo systemctl restart pigway-pi-control
 #
-# 默认监控 SSH 和向日葵核心后台服务。
+# 默认只监控 Raspberry Pi OS 自带的 SSH 服务。
+# 向日葵、Tailscale 等可选服务应在实际安装后再显式添加，避免全新系统误报。
 SSH = ssh.service
-AWESUN = runawesun.service

 # 以下仅为示例，默认不启用：
+# AWESUN = runawesun.service
 # TAILSCALE = tailscaled.service
 # DOCKER = docker.service
 # SAMBA = smbd.service
@@ -314,3 +183,9 @@ AWESUN = runawesun.service
 #
 # 示例默认全部注释，不会监控任何普通进程。
 # MYAPP = /opt/myapp/server
+
+# Use status.system.storage_inventory IDs, or edit through Console.
+# auto uses the filesystem label, mountpoint, or device path.
+[storage_names]
+[storage_visible]
+# <32-character ID> = false hides a disk while retaining collection.
@@ -0,0 +1,5 @@
+# Agent v3.8.0 网络流量
+
+2026-10-14 Gateway 已部署。单独的 NetworkRates 模块读取主接口 sysfs 计数器；网络更新周期计算速率，写入已有状态/API。首次采样、接口切换、复位、读取失败不伪造零值。idle 返回真实 0。安装器加入模块依赖，保持 API 可选安装。采样测试覆盖初始、零流量、传输、复位、切换及失效；Python 编译、安装器语法检查通过。实机服务 active，状态版本 3.8.0、eth0 上传/下载数值有效，未发现本轮循环错误；Console 两设备在线，接入插件生成对应历史指标。
+
+旧程序备份 `/home/way/pigway-agent-backup-v3.8.0-20261014/pigway-pi-control`，目录 0700。仅更新监控程序和新增模块并重启监控服务，没有变更硬件插件或 API 配置。
@@ -0,0 +1,5 @@
+# pigway-raspberry-pi-agent v3.9.0
+
+2026-10-15 已与 Console v2.4.0 部署。API 状态提供 collection.interval_seconds、system.observed_at 和 network.observed_at。Gateway 实际版本 3.9.0，状态采样时间与 1 秒/5 秒更新实测通过。旧程序在 /home/way/pigway-agent-backup-v3.9.0-20261015，目录 0700。
+
+生产两设备在线。认证 API 连续观测确认树莓派缓存每秒、网络 5 秒、NAS 实时约 10 秒；最近三个网络 10 秒历史桶各 2 个样本，没有每秒重复入库。Console 保留原名称、证书、存储缓存和一年历史策略。部署详情见 Console [生产记录](https://tea.pigway.com/way/pigway-device-console/src/branch/main/docs/DEPLOYMENT-v2.4.0-2026-10-15.md)。
@@ -0,0 +1,91 @@
+# Local hardware plugin API v1
+
+The monitor and plugins are separate applications. The monitor has no hardware
+library dependency. Plugins alone own their hardware. Installing or discovering
+a plugin does not connect it or start another service.
+
+## Transport and authorization
+
+HTTP/1.0 or HTTP/1.1 over `/run/pigway-plugins/<id>/api.sock`. No TCP listener.
+The parent directory is root-owned, mode 0750, and the socket is 0660 with group
+`pigway-hardware`. Root and deliberately enrolled group members may control the
+plugin. The monitor Web API authenticates mutations with its existing bearer
+token before proxying local requests. Remote machine operations require that
+machine's token too. API v1 clients reject incompatible descriptor versions.
+
+## Endpoints
+
+- `GET /v1/descriptor`: `api_version`, `id`, `name`, `version`, `capabilities`, `schema`.
+- `GET /v1/status`: availability, connection state and capability-specific actual
+  or commanded state. A missing tachometer must never be presented as measured RPM.
+- `GET /v1/config`: `config` plus `schema`.
+- `PUT /v1/config`: `{"updates":{"section":{"key":"value"}}}`; validate the complete
+  candidate before persisting or applying anything. Does not restart the monitor.
+- `PUT /v1/state`: replace the complete monitoring snapshot, never append commands.
+- `DELETE /v1/state`: release a lease. Publisher passes `source` and `session`;
+  authorized local administration may use `{}` to detach the current source.
+
+Example snapshot:
+
+```json
+{
+  "api_version": 1,
+  "source": "raspberrypi",
+  "session": "a-new-uuid-for-each-monitor-process",
+  "revision": 1,
+  "ttl_seconds": 10,
+  "system": {"cpu_percent": 12, "temperature_c": 50, "memory_percent": 20, "disk_percent": 30},
+  "network": {"kind": "WIF", "metric": "-60", "ip_label": "IP4", "ip": "192.168.1.2"},
+  "alerts": [{"id":"SERVICE_DOWN|APP","category":"service","severity":2,"priority":60,
+              "title":"SERVICE DOWN","l2":"APP","l3":"CHECK SERVICE","l4":"CRITICAL"}]
+}
+```
+
+Alert categories: `cpu`, `power`, `memory`, `storage`, `network`, `service`.
+The producer sends only current alerts, never historical power flags. Empty
+`alerts` clears all previous alerts. A source/session owns its lease until
+release or expiry; a competing source and repeated/out-of-order revisions are
+rejected. Leases use the receiving process's monotonic clock, 3–30 seconds.
+A new monitor session retries until the old lease expires if the old process
+could not release it. Each plugin has an independent bounded-time publisher and
+one replaceable latest snapshot, so an offline plugin cannot queue stale frames
+or block monitoring or other plugins.
+
+## Capability-driven UI
+
+`fan` declares levels or PWM, RPM availability, autonomous operation and ownership.
+`display` declares dimensions and pages. `rgb` declares modes, preset colors and
+experimental custom flashing. Absent capability means absent controls. A plugin
+with only a fan does not imply a screen or lighting device. New hardware needs
+its own driver; I2C, PWM GPIO and power-only fans are not interchangeable.
+
+`schema` groups fields by section. Each field provides bilingual `label`, `type`
+(`number`/`enum`), numeric limits or choices, unit and optional visibility rules.
+Optional `color_group` and `channel` (`r`/`g`/`b`) associate three numeric fields
+with a color picker. Plugins remain authoritative for all validation.
+
+## Failures and independent cooling
+
+Monitoring continues without installed or reachable plugins. Hardware plugins
+continue local temperature control without the monitor. Expired snapshots must
+not keep showing stale alerts as live faults. The Yahboom implementation returns
+to its locally sampled home and configured normal RGB mode on expiry or detach.
+It samples CPU, memory, disk, temperature and primary network independently.
+API v1 system/network fields remain accepted for compatibility but never override
+local telemetry. Monitor connectivity only supplies additional alerts.
+Its thermal read failure and service shutdown request full fan speed as a cooling
+fallback; actual execution still depends on functioning hardware.
+
+Stopping a monitor, pausing its link, or unlinking a plugin does not stop the
+plugin service. No API/Web service has a systemd Wants dependency that starts the
+other application. Do not run two drivers for the same MCU, GPIO or fan.
+
+## Optional listeners
+
+Agent network API defaults to disabled (`[api] enabled=false`) and has no Web UI.
+When enabled, every request requires a device bearer token.
+Hardware plugin integration defaults to disabled (`[integration] enabled=false`):
+no Unix API socket is created, while local telemetry and hardware workers continue.
+Change integration locally and restart the plugin. Monitor-to-plugin linkage does
+not require the Agent network API. The independent Web Manager stores registered
+device addresses and tokens; it is not implicitly a monitored device.
@@ -0,0 +1,71 @@
+# Raspberry Pi OS Lite (Debian 13 Trixie) fresh installation
+
+English | [简体中文](RASPBERRY_PI_OS_TRIXIE_FRESH_INSTALL.zh-CN.md)
+
+## Compatibility
+
+PIGWay Raspberry Pi Agent v3.7.1 supports Raspberry Pi OS Lite 64-bit based on Debian 13 Trixie and Python 3.13. The Agent reads Linux `/proc`, `/sys`, systemd, network state, and journal data. It has no GPIO, I2C, Pillow, or third-party Python dependency and does not need a virtual environment.
+
+The Yahboom RGB Cooling HAT is an independent plugin. It uses Debian packages `python3-smbus2` and `python3-pil`, avoiding pip changes to the PEP 668 managed system Python. Its verified interface remains unchanged:
+
+- I2C bus `/dev/i2c-1`; I2C must be enabled. SPI is not required.
+- MCU `0x0D`; 128x32 SSD1306-compatible OLED `0x3C`.
+- The fan uses six levels through MCU register `0x08`. It is not a Raspberry Pi GPIO PWM fan and has no verified RPM feedback.
+- The plugin is the sole process owner of the MCU, OLED, RGB, and fan.
+
+Do not guess or change GPIO pins for this board. Other GPIO/PWM fans require their own driver.
+
+## Fresh installation
+
+Check the system first:
+
+```bash
+cat /etc/os-release
+python3 --version
+raspi-config nonint get_i2c
+ls -l /dev/i2c-1
+ss -ltnp
+```
+
+`raspi-config nonint get_i2c` must return `0`. Enabling I2C changes boot configuration and normally requires a reboot, so confirm SSH key access and stable power first:
+
+```bash
+sudo raspi-config nonint do_i2c 0
+sudo reboot
+```
+
+Install the Agent first. Its API is opt-in:
+
+```bash
+git clone https://tea.pigway.com/way/pigway-raspberry-pi-agent.git
+cd pigway-raspberry-pi-agent
+sudo ./install.sh --disable-api
+```
+
+To use Device Console, verify the port and explicitly enable the API:
+
+```bash
+sudo ./install.sh --enable-api
+sudo ss -ltnp | grep ':6001 '
+sudo cat /etc/pigway-pi-control-api.token
+```
+
+Install the hardware plugin after `/dev/i2c-1` is available:
+
+```bash
+git clone https://tea.pigway.com/way/pigway-yahboom-cooling-hat.git
+cd pigway-yahboom-cooling-hat
+sudo ./install.sh --enable-integration
+```
+
+Register its Unix socket under `[plugins]` in `/etc/pigway-pi-control.conf`, then restart only the Agent:
+
+```ini
+yahboom-cooling-hat = /run/pigway-plugins/yahboom-cooling-hat/api.sock
+```
+
+## Validation
+
+Validate both systemd services, Agent diagnostics, boot journal, and plugin status. Physically verify the four-line OLED and 10-second rotation, RGB alerts, and temperature-dependent fan levels. Plugin shutdown requests full fan speed and driver close never writes fan OFF. Since the board has no tachometer feedback, requested level is not measured RPM.
+
+The Agent API is disabled by default and the plugin uses a local Unix socket, so the default installation opens no TCP port and does not conflict with Tailscale or an API gateway.
@@ -0,0 +1,88 @@
+# Raspberry Pi OS Lite（Debian 13 Trixie）全新安装
+
+[English](RASPBERRY_PI_OS_TRIXIE_FRESH_INSTALL.md) | 简体中文
+
+## 兼容性结论
+
+PIGWay Raspberry Pi Agent v3.7.1 兼容 Raspberry Pi OS Lite 64-bit、Debian 13 Trixie 与 Python 3.13。Agent 只读取 Linux 的 `/proc`、`/sys`、systemd、网络状态和 journal，不依赖 GPIO、I²C、Pillow 或第三方 Python 包，也不需要 venv。
+
+Yahboom RGB Cooling HAT 已拆分为独立插件。插件使用 Debian 系统包 `python3-smbus2` 与 `python3-pil`，不会通过 pip 修改受 PEP 668 管理的系统 Python。硬件接口保持原实现：
+
+- I²C 总线：`/dev/i2c-1`，需要启用 I²C；不需要 SPI。
+- 控制 MCU：`0x0D`；OLED：`0x3C`，SSD1306 兼容 128×32。
+- 风扇通过 MCU 寄存器 `0x08` 的六档控制，不使用 Raspberry Pi GPIO PWM 引脚，也没有可验证的 RPM 反馈。
+- RGB 由 MCU 寄存器控制；插件是 MCU、OLED、RGB 与风扇的唯一进程所有者。
+
+因此不能把这块散热板当作直连 GPIO 风扇，也不应猜测或修改 GPIO 引脚。其他 GPIO/PWM 风扇需要独立驱动。
+
+## 安装前检查
+
+```bash
+cat /etc/os-release
+python3 --version
+raspi-config nonint get_i2c
+ls -l /dev/i2c-1
+ss -ltnp
+```
+
+`raspi-config nonint get_i2c` 返回 `0` 才表示 I²C 已启用。启用 I²C 会修改启动配置，并且通常需要重启；远程操作前应确认 SSH 公钥登录与供电稳定。
+
+```bash
+sudo raspi-config nonint do_i2c 0
+sudo reboot
+```
+
+重连后确认 `/dev/i2c-1` 存在。散热板插件安装器会安装诊断工具并检查 `0x0D`、`0x3C`，不会改 SSH、网络或 Wi-Fi。
+
+## 安装顺序
+
+先安装通用监控 Agent：
+
+```bash
+git clone https://tea.pigway.com/way/pigway-raspberry-pi-agent.git
+cd pigway-raspberry-pi-agent
+sudo ./install.sh --disable-api
+```
+
+默认只监控 `ssh.service`，不会假定已安装向日葵或 Tailscale。需要 NAS 上的 Device Console 时，先确认端口未占用，再显式开启 API：
+
+```bash
+sudo ./install.sh --enable-api
+sudo ss -ltnp | grep ':6001 '
+sudo cat /etc/pigway-pi-control-api.token
+```
+
+再安装独立硬件插件：
+
+```bash
+git clone https://tea.pigway.com/way/pigway-yahboom-cooling-hat.git
+cd pigway-yahboom-cooling-hat
+sudo ./install.sh --enable-integration
+```
+
+最后在 `/etc/pigway-pi-control.conf` 的 `[plugins]` 中登记：
+
+```ini
+yahboom-cooling-hat = /run/pigway-plugins/yahboom-cooling-hat/api.sock
+```
+
+然后仅重启 Agent：
+
+```bash
+sudo systemctl restart pigway-pi-control.service
+```
+
+## 验收
+
+```bash
+systemctl --no-pager --full status pigway-pi-control.service
+systemctl --no-pager --full status pigway-cooling-hat.service
+sudo /usr/local/sbin/pigway-pi-control --diagnose
+sudo journalctl -u pigway-pi-control.service -b --no-pager
+sudo journalctl -u pigway-cooling-hat.service -b --no-pager
+curl --unix-socket /run/pigway-plugins/yahboom-cooling-hat/api.sock http://localhost/v1/status
+```
+
+实机还需肉眼确认 OLED 四行主页与10秒轮播、RGB 告警颜色/效果，并通过温度变化确认风扇档位。停止插件时会请求风扇全速，驱动关闭时不会写风扇 OFF；硬件无转速反馈，因此只能确认请求档位，不能声称测得真实 RPM。
+
+API 默认关闭，不占用 TCP 端口。插件只使用本机 Unix socket，不会与 Tailscale 或 API 网关争用端口。两个服务都由 systemd 独立管理，异常退出自动重启，任一项目停止不会停止另一个项目。
@@ -1,197 +1,87 @@
 #!/bin/bash
 set -euo pipefail
 cd "$(dirname "$0")"
-
-FORCE_I2C_CONFLICT=0
+NO_START=0
+API_ENABLED=""
 for arg in "$@"; do
  case "$arg" in
-    --force-i2c-conflict) FORCE_I2C_CONFLICT=1 ;;
-    -h|--help)
-      echo "Usage: sudo ./install.sh [--force-i2c-conflict]"
-      echo "  --force-i2c-conflict  Continue even when another process owns /dev/i2c-1."
-      exit 0
-      ;;
-    *) echo "ERROR: unknown option: $arg" >&2; exit 2 ;;
+    --enable-api) API_ENABLED=true ;;
+    --disable-api) API_ENABLED=false ;;
+    --no-start) NO_START=1 ;;
+    -h|--help) echo 'Usage: sudo ./install.sh [--no-start] [--enable-api|--disable-api]'; exit 0 ;;
+    *) echo "ERROR: unknown option: $arg (hardware is installed separately)" >&2; exit 2 ;;
  esac
 done
-
-for required in app/pigway_pi_control.py app/pigway_pi_control_api.py app/oled_font_5x7.bin web/index.html config/pigway-pi-control.conf systemd/pigway-pi-control.service systemd/pigway-pi-control-api.service; do
-  if [ ! -f "$required" ]; then
-    echo "ERROR: required file missing: $required" >&2
-    exit 1
-  fi
+for required in app/pigway_pi_control.py app/plugin_api.py app/network_rates.py app/storage_cache.py app/pigway_pi_control_api.py config/pigway-pi-control.conf systemd/pigway-pi-control.service systemd/pigway-pi-control-api.service; do
+  [ -f "$required" ] || { echo "ERROR: required file missing: $required" >&2; exit 1; }
 done
-
-echo "[1/8] 检查 Raspberry Pi I2C..."
-[ -e /dev/i2c-1 ] || { echo "错误：/dev/i2c-1 不存在。先 sudo raspi-config -> Interface Options -> I2C -> Enable，然后重启。"; exit 1; }
-
-# A running copy of this project is expected during an upgrade. Any other
-# process holding the shared bus could race OLED/MCU writes, so report it and
-# let the user decide how that process should be managed.
-i2c_conflict_pids() {
-  local allowed_pid pid
-  allowed_pid="$(systemctl show -p MainPID --value pigway-pi-control.service 2>/dev/null || true)"
-  for pid in $(fuser /dev/i2c-1 2>/dev/null || true); do
-    case "$pid" in
-      ''|*[!0-9]*) continue ;;
-    esac
-    [ "$pid" = "$$" ] && continue
-    [ "$pid" = "$allowed_pid" ] && continue
-    kill -0 "$pid" 2>/dev/null && echo "$pid"
-  done
-}
-
-I2C_CONFLICTS="$(i2c_conflict_pids)"
-if [ -n "$I2C_CONFLICTS" ]; then
-  if [ "$FORCE_I2C_CONFLICT" -eq 1 ]; then
-    echo "WARNING: /dev/i2c-1 is already in use by another process:" >&2
-  else
-    echo "ERROR: /dev/i2c-1 is already in use by another process:" >&2
-  fi
-  while read -r pid; do
-    ps -p "$pid" -o pid=,user=,comm=,args= >&2 || true
-  done <<< "$I2C_CONFLICTS"
-  if [ "$FORCE_I2C_CONFLICT" -eq 1 ]; then
-    echo "WARNING: continuing because --force-i2c-conflict was specified; no conflicting process will be stopped." >&2
-  else
-    echo "Stop or reconfigure the conflicting OLED/LED controller, then run the installer again." >&2
-    echo "If concurrent control is intentional, rerun with --force-i2c-conflict." >&2
-    exit 1
-  fi
-fi
-
-echo "[2/8] 等待 APT/DPKG..."
-for i in $(seq 1 60); do
-  if ! fuser /var/lib/dpkg/lock-frontend /var/lib/apt/lists/lock /var/cache/apt/archives/lock >/dev/null 2>&1; then break; fi
-  [ "$i" = 60 ] && { echo "APT 锁等待超时，请稍后重试。"; exit 1; }
-  echo "软件包管理器忙，等待 5 秒... ($i/60)"
-  sleep 5
-done
-
-echo "[3/8] 安装依赖..."
-apt-get update
-apt-get install -y python3 python3-pil python3-smbus2 i2c-tools
-
-echo "[4/8] 检查硬件地址..."
-SCAN="$(i2cdetect -y 1)"; echo "$SCAN"
-echo "$SCAN" | grep -qi '3c' || echo "警告：未扫描到 OLED 0x3C"
-echo "$SCAN" | grep -qi '0d' || echo "警告：未扫描到控制 MCU 0x0D"
-
-echo "[5/8] 安装程序与配置..."
+[ "$(id -u)" -eq 0 ] || { echo 'ERROR: run installer as root' >&2; exit 1; }
+# The monitor has no I2C, GPIO, Pillow, smbus2 or cooling-board requirement.
+command -v python3 >/dev/null || { apt-get update; apt-get install -y python3; }
+command -v lsblk >/dev/null || { apt-get update; apt-get install -y util-linux; }
 mkdir -p /usr/local/share/pigway-pi-control
-install -m 0644 app/oled_font_5x7.bin /usr/local/share/pigway-pi-control/oled_font_5x7.bin
-mkdir -p /usr/local/share/pigway-pi-control/web
-install -m 0644 web/index.html /usr/local/share/pigway-pi-control/web/index.html
-
+install -m 0644 app/storage_cache.py /usr/local/share/pigway-pi-control/storage_cache.py
+install -m 0644 app/network_rates.py /usr/local/share/pigway-pi-control/network_rates.py
+install -m 0644 app/plugin_api.py /usr/local/share/pigway-pi-control/plugin_api.py
 install -m 0755 app/pigway_pi_control.py /usr/local/sbin/pigway-pi-control
 install -m 0755 app/pigway_pi_control_api.py /usr/local/sbin/pigway-pi-control-api
-
-# Keep the complete existing configuration, including comments and custom sections.
-# The merge below adds only missing documented options.
 if [ -f /etc/pigway-pi-control.conf ]; then
  cp /etc/pigway-pi-control.conf "/etc/pigway-pi-control.conf.bak.$(date +%Y%m%d-%H%M%S)"
 else
  install -m 0644 config/pigway-pi-control.conf /etc/pigway-pi-control.conf
 fi
-
-# Preserve the existing file while exposing new defaults. Existing values win.
-python3 - /etc/pigway-pi-control.conf <<'PY'
-import re,sys
+# Legacy hardware sections are deliberately preserved for explicit migration,
+# but ignored by the monitor and never exposed as monitor configuration.
+python3 - <<'PY'
 from pathlib import Path
-
-path=Path(sys.argv[1])
-text=path.read_text()
-sections={
-"device":(("identifier","auto"),("name","auto")),
-"hosts":(),
-"led":(
-    ("normal_mode","off"),
-    ("normal_r",0),("normal_g",0),("normal_b",0),
-    ("normal_flash_on_ms",1000),("normal_flash_off_ms",1000),
-    ("normal_effect_speed",2),("normal_effect_color","green"),
-    ("write_delay_ms",10),
-    ("cpu_r",255),("cpu_g",0),("cpu_b",0),
-    ("power_r",255),("power_g",40),("power_b",0),
-    ("memory_r",255),("memory_g",0),("memory_b",255),
-    ("storage_r",255),("storage_g",255),("storage_b",255),
-    ("network_r",0),("network_g",0),("network_b",255),
-    ("service_r",0),("service_g",255),("service_b",96),
-    ("warning_flash_on_ms",1500),("warning_flash_off_ms",1500),
-    ("critical_flash_on_ms",750),("critical_flash_off_ms",750),
-    ("emergency_flash_on_ms",300),("emergency_flash_off_ms",300),
-),
-"api":(("bind","0.0.0.0"),("port",6001),("log_limit",200)),
-}
-for section,defaults in sections.items():
-    match=re.search(rf"(?m)^\[{re.escape(section)}\]\s*$",text)
-    if match:
-        next_section=re.search(r"(?m)^\[.+\]\s*$",text[match.end():])
-        end=match.end()+(next_section.start() if next_section else len(text)-match.end())
-        chunk=text[match.end():end]
+import configparser,re
+p=Path('/etc/pigway-pi-control.conf');text=p.read_text();c=configparser.ConfigParser();c.read_string(text)
+for section,values in {'device':{'identifier':'auto','name':'auto'},'plugins':{},
+                       'alerts':{'ethernet_min_speed_mbps':'1000','ethernet_speed_seconds':'15'},
+                       'api':{'bind':'0.0.0.0','port':'6001','log_limit':'200'}}.items():
+    if not c.has_section(section):
+        text=text.rstrip()+'\n\n['+section+']\n'+''.join(k+' = '+v+'\n' for k,v in values.items())
    else:
-        text=text.rstrip()+f"\n\n[{section}]\n"
-        match=re.search(rf"(?m)^\[{re.escape(section)}\]\s*$",text)
-        end=len(text); chunk=""
-    missing=[(key,value) for key,value in defaults
-             if not re.search(rf"(?m)^\s*{re.escape(key)}\s*=",chunk)]
-    if missing:
-        note="# Added by installer; existing user values are preserved.\n"
-        if section=="led" and any(key.startswith("normal_") for key,_ in missing):
-            note+=("# Normal RGB: normal_mode = off/solid/flash/flow/breathe/marquee/rainbow/colorful.\n"
-                   "# normal_r/g/b = 0..255; normal_flash_*_ms = 50..60000; effect speed = 1..3.\n"
-                   "# Effect color = red/green/blue/yellow/purple/cyan/white (flow/breathe only).\n")
-        block=note+"".join(f"{key} = {value}\n" for key,value in missing)
-        text=text[:end].rstrip()+"\n"+block+"\n\n"+text[end:].lstrip("\n")
-path.write_text(text)
+        missing={k:v for k,v in values.items() if not c.has_option(section,k)}
+        if missing:
+            start=re.search(rf'(?mi)^\[{re.escape(section)}\][ \t]*$',text).end()
+            following=re.search(r'(?m)^\[[^\]\r\n]+\]',text[start:])
+            end=start+(following.start() if following else len(text)-start)
+            text=text[:end].rstrip()+'\n'+''.join(k+' = '+v+'\n' for k,v in missing.items())+'\n'+text[end:].lstrip('\n')
+p.write_text(text)
 PY
 if [ ! -s /etc/pigway-pi-control-api.token ]; then
-  umask 077
-  python3 - <<'PY' > /etc/pigway-pi-control-api.token
-import secrets
-print(secrets.token_urlsafe(32))
-PY
+  (umask 077; python3 -c 'import secrets; print(secrets.token_urlsafe(32))' > /etc/pigway-pi-control-api.token)
 fi
 chmod 0600 /etc/pigway-pi-control-api.token
-install -m 0644 systemd/pigway-pi-control.service /etc/systemd/system/pigway-pi-control.service
-install -m 0644 systemd/pigway-pi-control-api.service /etc/systemd/system/pigway-pi-control-api.service
-
-echo "[6/8] 启用/重启服务..."
-systemctl daemon-reload
-systemctl enable pigway-pi-control.service pigway-pi-control-api.service >/dev/null
-systemctl restart pigway-pi-control.service
-systemctl restart pigway-pi-control-api.service
-
-echo "[7/8] 安装后自检..."
-FAIL=0
-check() { local label="$1"; shift; if "$@"; then printf "  %-30s PASS\n" "$label"; else printf "  %-30s FAIL\n" "$label"; FAIL=1; fi; }
-APP=/usr/local/sbin/pigway-pi-control
-check "Version 3.7.0" grep -Fq 'APP_VERSION="3.7.0"' "$APP"
-check "OLED physical 128x32" grep -Fq 'W,H=128,32' "$APP"
-check "OLED MUX 0x1F" grep -Fq '0xA8,0x1F' "$APP"
-check "OLED pages 0..3" grep -Fq 'cmd(0x22);cmd(0);cmd(3)' "$APP"
-check "UI CPU/TMP/DSK" grep -Fq 'f"TMP {temp:.1f}C"' "$APP"
-check "UI IP4/IP6" grep -Fq 'ip_label' "$APP"
-check "UI right column x=72" grep -Fq 'draw_text_5x7(pix,72,y,right[row])' "$APP"
-if [ "$FORCE_I2C_CONFLICT" -eq 1 ]; then
-  printf "  %-30s WARN (forced)\n" "I2C owner conflict"
-else
-  no_other_i2c_owner() { [ -z "$(i2c_conflict_pids)" ]; }
-  check "No other I2C owner" no_other_i2c_owner
+install -m 0644 systemd/pigway-pi-control.service /etc/systemd/system/
+install -m 0644 systemd/pigway-pi-control-api.service /etc/systemd/system/
+if [ -z "$API_ENABLED" ]; then
+  API_ENABLED=false
+  if [ -t 0 ]; then
+    read -r -p 'Enable remote management API? [y/N] ' answer
+    case "$answer" in y|Y|yes|YES) API_ENABLED=true ;; esac
+  fi
 fi
-check "Service running" systemctl is-active --quiet pigway-pi-control.service
-check "API/Web service running" systemctl is-active --quiet pigway-pi-control-api.service
-check "API/Web version 3.7.0" grep -Fq 'APP_VERSION="3.7.0"' /usr/local/sbin/pigway-pi-control-api
-check "Web UI installed" test -s /usr/local/share/pigway-pi-control/web/index.html
-check "P0 health monitor" grep -Fq 'throttled_state' "$APP"
-check "Diagnostic command" grep -Fq -- '--diagnose' "$APP"
-if [ "$FAIL" -ne 0 ]; then echo "错误：安装后自检未全部通过。"; exit 1; fi
-echo "[8/8] 状态..."
-
-
-systemctl --no-pager --full status pigway-pi-control.service || true
-systemctl --no-pager --full status pigway-pi-control-api.service || true
-echo
-echo "完成。程序：/usr/local/sbin/pigway-pi-control"
-echo "配置：/etc/pigway-pi-control.conf"
-echo "Web/API：http://$(hostname -I | awk '{print $1}'):$(awk -F= '/^port[[:space:]]*=/{gsub(/[[:space:]]/,"",$2);print $2;exit}' /etc/pigway-pi-control.conf)"
-echo "配置写入 token：sudo cat /etc/pigway-pi-control-api.token"
+API_ENABLED="$API_ENABLED" python3 - <<'PYAPI'
+import os,sys
+sys.path.insert(0,'app')
+import pigway_pi_control_api as api
+api.save_ini_text(api.replace_ini_value('api','enabled',os.environ['API_ENABLED']),'install')
+PYAPI
+systemctl daemon-reload
+if [ "$NO_START" -eq 0 ]; then
+  systemctl enable pigway-pi-control.service >/dev/null
+  systemctl restart pigway-pi-control.service
+  systemctl is-active --quiet pigway-pi-control.service
+  if [ "$API_ENABLED" = true ]; then
+    systemctl enable pigway-pi-control-api.service >/dev/null
+    systemctl restart pigway-pi-control-api.service
+    systemctl is-active --quiet pigway-pi-control-api.service
+  else
+    systemctl disable --now pigway-pi-control-api.service
+  fi
+fi
+echo 'Monitor installed. Hardware plugins are installed and connected separately.'
+echo 'Config: /etc/pigway-pi-control.conf'
+echo 'API token: sudo cat /etc/pigway-pi-control-api.token'
@@ -1,12 +1,14 @@
 [Unit]
-Description=PIGWay Pi Control API and Web
+Description=PIGWay Raspberry Pi Agent optional local API
 After=network.target pigway-pi-control.service
-Wants=network.target pigway-pi-control.service
+Wants=network.target

 [Service]
 Type=simple
 ExecStart=/usr/local/sbin/pigway-pi-control-api
 Restart=always
+RestartPreventExitStatus=78
+SuccessExitStatus=78
 RestartSec=2
 User=root
 NoNewPrivileges=true
@@ -1,7 +1,7 @@
 [Unit]
-Description=PIGWay Raspberry Pi OLED/Fan/RGB Monitor
-After=multi-user.target network.target
-Wants=network.target
+Description=PIGWay Raspberry Pi Agent system monitor
+After=local-fs.target systemd-modules-load.service network-online.target ssh.service
+Wants=network-online.target

 [Service]
 Type=simple
@@ -0,0 +1,23 @@
+import sys,unittest,tempfile
+from pathlib import Path
+sys.path.insert(0,str(Path(__file__).resolve().parents[1]/'app'))
+from network_rates import NetworkRates
+
+class RatesTests(unittest.TestCase):
+    def test_initial_idle_transfer_reset_and_switch(self):
+        with tempfile.TemporaryDirectory() as root:
+            def write(interface,rx,tx):
+                p=Path(root)/interface/'statistics';p.mkdir(parents=True,exist_ok=True)
+                (p/'rx_bytes').write_text(str(rx));(p/'tx_bytes').write_text(str(tx))
+            write('eth0',1000,2000);sampler=NetworkRates(root)
+            self.assertEqual(sampler.sample('eth0',10),(None,None))
+            self.assertEqual(sampler.sample('eth0',15),(0,0))
+            write('eth0',1500,3000)
+            self.assertEqual(sampler.sample('eth0',20),(100,200))
+            write('eth0',10,20)
+            self.assertEqual(sampler.sample('eth0',25),(None,None))
+            write('wlan0',100,200)
+            self.assertEqual(sampler.sample('wlan0',30),(None,None))
+            self.assertEqual(sampler.sample('missing',35),(None,None))
+            self.assertEqual(sampler.sample('eth0',40),(None,None))
+            self.assertEqual(sampler.sample('../eth0',45),(None,None))
@@ -0,0 +1,41 @@
+import sys,tempfile,unittest
+from pathlib import Path
+from types import SimpleNamespace
+sys.path.insert(0,str(Path(__file__).resolve().parents[1]/'app'))
+from storage_cache import StorageCache
+
+
+class StorageTests(unittest.TestCase):
+    def test_weekly_reads_and_restart_cache(self):
+        with tempfile.TemporaryDirectory() as directory:
+            now=[1000];reads=[]
+            def reader(path):
+                reads.append(path);return SimpleNamespace(total=1000,used=200,free=800)
+            p=Path(directory)/'cache.json'
+            cache=StorageCache(p,reader,lambda:now[0])
+            self.assertEqual(cache.sample()['used'],200)
+            for i in range(20):now[0]+=1;cache.sample()
+            self.assertEqual(len(reads),1)
+            restored=StorageCache(p,reader,lambda:now[0]);restored.sample()
+            self.assertEqual(len(reads),1)
+            now[0]=605800;restored.sample()
+            self.assertEqual(len(reads),2)
+
+    def test_failure_does_not_fabricate_zero_or_retry_each_second(self):
+        with tempfile.TemporaryDirectory() as directory:
+            now=[1000];reads=[]
+            def fail(path):reads.append(path);raise OSError('unavailable')
+            cache=StorageCache(Path(directory)/'cache.json',fail,lambda:now[0])
+            self.assertIsNone(cache.sample());self.assertTrue(cache.error)
+            now[0]+=5;self.assertIsNone(cache.sample())
+            self.assertEqual(len(reads),1)
+
+    def test_failed_read_cooldown_survives_restart(self):
+        with tempfile.TemporaryDirectory() as directory:
+            reads=[]
+            def fail(path):reads.append(path);raise OSError('unavailable')
+            p=Path(directory)/'cache.json'
+            StorageCache(p,fail,lambda:1000).sample()
+            restored=StorageCache(p,fail,lambda:1005)
+            self.assertTrue(restored.error);self.assertIsNone(restored.sample())
+            self.assertEqual(len(reads),1)
@@ -0,0 +1,35 @@
+import importlib.util
+import sys
+import tempfile
+import unittest
+from pathlib import Path
+from unittest.mock import patch
+
+ROOT = Path(__file__).resolve().parents[1]
+sys.path.insert(0, str(ROOT / "app"))
+stem = "pigway_ubuntu_agent_api" if (ROOT / "app/pigway_ubuntu_agent_api.py").exists() else "pigway_pi_control_api"
+spec = importlib.util.spec_from_file_location("storage_api_under_test", ROOT / "app" / (stem + ".py"))
+api = importlib.util.module_from_spec(spec)
+spec.loader.exec_module(api)
+
+
+class StorageConfigTests(unittest.TestCase):
+    def test_config_round_trip_and_invalid_edits_are_atomic(self):
+        with tempfile.TemporaryDirectory() as directory:
+            config = Path(directory) / "agent.conf"
+            config.write_text("[device]\nname = auto\n")
+            identifier = "a" * 32
+            with patch.object(api, "CFG", config):
+                api.update_ini({"storage_names": {identifier: "媒体盘 100%"}, "storage_visible": {identifier: "false"}})
+                self.assertEqual(api.config_json()["storage_names"][identifier], "媒体盘 100%")
+                self.assertEqual(api.config_json()["storage_visible"][identifier], "false")
+                original = config.read_text()
+                for updates in [
+                    {"storage_visible": {identifier: "yes"}},
+                    {"storage_names": {"invalid-id": "Bad"}},
+                    {"storage_names": {identifier: "x" * 65}},
+                    {"storage_names": {identifier: "bad\tname"}},
+                ]:
+                    with self.assertRaises(ValueError):
+                        api.update_ini(updates)
+                    self.assertEqual(config.read_text(), original)
@@ -0,0 +1,97 @@
+import configparser
+import json
+import sys
+import tempfile
+import unittest
+from collections import namedtuple
+from pathlib import Path
+sys.path.insert(0, str(Path(__file__).resolve().parents[1] / "app"))
+from storage_cache import StorageInventory
+
+Usage = namedtuple("Usage", "total used free")
+
+
+class StorageInventoryTests(unittest.TestCase):
+    def setUp(self):
+        self.tmp = tempfile.TemporaryDirectory()
+        self.addCleanup(self.tmp.cleanup)
+        self.mounts = Path(self.tmp.name) / "mountinfo"
+        self.mounts.write_text("1 0 8:1 / / rw - ext4 /dev/sda1 rw\n2 0 8:2 / /media/My\\040Disk rw - ext4 /dev/sda2 rw\n3 0 8:2 /folder /bind rw - ext4 /dev/sda2 rw\n")
+        self.data = {"blockdevices": [
+            {"name": "/dev/sda", "type": "disk", "serial": "serial", "children": [
+                {"name": "/dev/sda1", "type": "part", "uuid": "root", "maj:min": "8:1", "fstype": "ext4", "size": 1000},
+                {"name": "/dev/sda2", "type": "part", "uuid": "data", "maj:min": "8:2", "fstype": "ext4", "size": 2000},
+            ]},
+            {"name": "/dev/sdb", "type": "disk", "size": 3000},
+            {"name": "/dev/loop0", "type": "loop", "size": 4000},
+            {"name": "/dev/zram0", "type": "disk", "fstype": "swap"},
+        ]}
+        self.now = 100
+        self.reader = StorageInventory(clock=lambda: self.now, runner=lambda: json.dumps(self.data),
+                                       mounts_path=self.mounts, usage=lambda p: Usage(1000, 0, 1000),
+                                       cache_path=Path(self.tmp.name)/"inventory.json")
+        self.reader.scan()
+
+    def test_weekly_usage_cache_survives_service_restart(self):
+        capacity=Path(self.tmp.name)/'usage.json'
+        self.reader.capacity_path=capacity
+        self.reader.sample()
+        def forbidden(*args):raise AssertionError('Not due; should not read capacity or discover disks')
+        restarted=StorageInventory(clock=lambda:self.now+100,runner=forbidden,mounts_path=self.mounts,
+                                   usage=forbidden,cache_path=self.reader.cache_path,capacity_path=capacity)
+        self.assertEqual(len(restarted.sample()),3)
+        self.assertEqual(restarted.observed_at,self.now)
+        self.assertEqual(restarted.next_update_at,self.now+604800)
+
+    def test_mounts_raw_disk_and_pseudo_filters(self):
+        disks = self.reader.sample()
+        self.assertEqual(len(disks), 3)
+        self.assertEqual(disks[0]["mountpoint"], "/")
+        self.assertEqual(next(d for d in disks if d.get("uuid") == "data")["mountpoint"], "/media/My Disk")
+        self.assertEqual(disks[0]["used_percent"], 0)
+        raw = next(d for d in disks if d["device"] == "/dev/sdb")
+        self.assertEqual(raw["state"], "unmounted")
+        self.assertIsNone(raw["used_bytes"])
+
+    def test_uuid_survives_renumber_and_configuration(self):
+        disk = self.reader.sample()[0]
+        self.data["blockdevices"][0]["children"][0]["name"] = "/dev/sdz1"
+        self.now += 61
+        self.reader.scan()
+        config = configparser.ConfigParser()
+        config.read_string(f'[storage_names]\n{disk["id"]} = 数据盘 100%\n[storage_visible]\n{disk["id"]} = false\n')
+        result = next(d for d in self.reader.sample(config) if d["id"] == disk["id"])
+        self.assertEqual(result["name"], "数据盘 100%")
+        self.assertFalse(result["visible"])
+
+    def test_removal_and_discovery_error_are_distinct(self):
+        disk = self.reader.sample()[0]
+        config = configparser.ConfigParser()
+        config.read_dict({"storage_names": {disk["id"]: "System"}})
+        self.reader.runner = lambda: "invalid json"
+        self.now += 61
+        with self.assertRaises(ValueError):self.reader.scan()
+        self.assertEqual(self.reader.sample(config)[0]["state"], "mounted")
+        self.reader.runner = lambda: '{"blockdevices":[]}'
+        self.now += 61
+        self.reader.scan()
+        self.assertEqual(self.reader.sample(config)[0]["state"], "missing")
+        self.assertFalse(self.reader.error)
+
+    def test_hotplug_requires_manual_scan_and_inventory_survives_restart(self):
+        self.assertEqual(len(self.reader.sample()), 3)
+        self.data["blockdevices"].append({"name": "/dev/sdc", "type": "disk", "uuid": "new", "size": 9000})
+        self.now += 29
+        self.assertEqual(len(self.reader.sample()), 3)
+        self.now += 100000
+        self.assertEqual(len(self.reader.sample()), 3)
+        self.reader.scan()
+        self.assertEqual(len(self.reader.sample()), 4)
+        def forbidden():raise AssertionError("automatic enumeration is forbidden")
+        restored=StorageInventory(clock=lambda:self.now,runner=forbidden,mounts_path=self.mounts,
+                                  usage=lambda p:Usage(1000,0,1000),cache_path=self.reader.cache_path)
+        self.assertEqual(len(restored.sample()),4)
+
+
+if __name__ == "__main__":
+    unittest.main()
Author	SHA1	Message	Date
way	747503d86d	feat: add manual disk discovery and weekly capacity cache	2026-10-15 23:30:06 +08:00
way	174ac747c5	feat: expose per-group refresh plans and cache storage daily	2026-10-15 09:17:20 +08:00
way	b63fa39f32	docs: confirm sampling timestamps production deployment	2026-10-15 00:51:47 +08:00
way	e828fd11ee	feat: expose true sampling timestamps and cache read cadence	2026-10-15 00:35:32 +08:00
way	7aa8f838a6	feat: sample Raspberry Pi primary interface traffic rates	2026-10-14 23:43:40 +08:00
way	e55ad3217f	docs: clarify Raspberry Pi project names and integration scope	2026-10-11 16:29:26 +08:00
way	26c313df46	feat: monitor ethernet link speed	2026-10-11 00:34:21 +08:00
way	fc27079126	release: support Raspberry Pi OS Trixie	2026-10-11 00:06:22 +08:00
way	b0998555d9	docs: refine language switch links	2026-09-28 21:28:27 +08:00
way	f735c3fb4e	docs: split English and Chinese readmes	2026-09-28 20:03:13 +08:00
way	436b87f40e	docs: add bilingual project documentation	2026-09-27 23:31:25 +08:00
way	302c38986e	release: merge Device Agent v3.7.0	2026-09-27 23:17:45 +08:00
way	72a3a2e0f3	docs: align project names and repository links	2026-09-27 22:37:54 +08:00
way	95494aa894	refactor: separate fleet manager from local monitoring	2026-09-27 22:28:03 +08:00
way	10f57a5699	style: simplify fan speed labels	2026-09-27 21:50:05 +08:00
way	11f8ffd5f6	style: unify preference icon and text spacing	2026-09-27 21:48:18 +08:00
way	75d0ce2d85	style: align fan status with CPU frequency	2026-09-27 21:47:01 +08:00
way	38382ba61c	style: integrate globe icon into language selector	2026-09-27 21:44:03 +08:00
way	da5f53ad99	fix: show fan telemetry with CPU and space action rows	2026-09-27 21:42:57 +08:00
way	1087ec828f	style: increase save status spacing	2026-09-27 21:22:16 +08:00
way	ece74e0a3f	style: space plugin save actions below settings	2026-09-27 21:21:36 +08:00
way	b60928c30f	feat: add machine management and resolved device identity	2026-09-27 21:20:44 +08:00
way	5f3e9353ed	docs: clarify API token retrieval wording	2026-09-27 21:11:20 +08:00
way	510f90288a	Merge standalone monitoring and plugin architecture for v3.7.0	2026-09-27 21:06:03 +08:00
way	52b21db59e	docs: present standalone monitoring and connected plugins	2026-09-27 21:05:43 +08:00
way	99ae7af238	docs: generalize plugin capability guidance	2026-09-27 21:02:52 +08:00
way	a01b34af6b	docs: clarify autonomous plugin telemetry and lease expiry	2026-09-27 20:54:06 +08:00
way	33e632e4b9	fix: show plugin refresh results and startup guidance	2026-09-27 20:33:28 +08:00
way	3ef26a76fc	fix: restore CPU meter and explain unavailable fan status	2026-09-27 20:31:29 +08:00
way	bef4f72b44	refactor: separate monitoring from hardware plugins	2026-09-27 20:24:34 +08:00
way	c03f481dd4	fix: quench RGB after fan register writes	2026-09-27 15:19:05 +08:00
way	8b90dc9612	fix: isolate fan writes from active RGB frames	2026-09-27 15:16:10 +08:00
way	a4d9d9aba7	refactor: isolate OLED and RGB workers	2026-09-27 15:07:16 +08:00
way	cc31f71c7b	fix: stabilize RGB startup and color transitions	2026-09-27 15:03:15 +08:00
way	83d1d9b8c3	style: reorganize event log filters	2026-09-27 14:58:21 +08:00
way	2e9acee06e	style: refine language and appearance controls	2026-09-27 14:55:03 +08:00
way	af03722fe3	fix: preserve device hover across status refreshes	2026-09-27 14:50:35 +08:00
way	ded4cb514c	feat: add independent batch configuration sync	2026-09-27 14:48:03 +08:00
way	2515c64c22	fix: align configuration target controls	2026-09-27 14:39:21 +08:00
way	4bcc12f91c	style: flatten inner cards and lift devices on hover	2026-09-27 14:37:36 +08:00
way	b957c63847	merge: multi-host monitoring and configuration	2026-09-27 14:34:46 +08:00