Add isolated read-only official widget integration and searchable catalog

pigway_frame_flow/models.py

@@ -390,3 +390,21 @@ class ImageURLConfig(StrictModel):
             raise ValueError("Use hostnames only, without URLs or wildcards")
         self.allowed_hosts = sorted(set(h.lower() for h in self.allowed_hosts))
         return self
+
+
+class Widget(StrictModel):
+    id: int
+    name: str
+    tags: list[str] = Field(default_factory=list)
+    arg_keys: list[str] = Field(default_factory=list)
+
+
+class WidgetState(StrictModel):
+    source: Literal["live", "snapshot", "mock"]
+    configured: bool
+    status: str = "OK"
+    observed_at: str | None = None
+    catalog: list[Widget]
+    current: Widget | None = None
+    current_verified: bool = False
+    writable: Literal[False] = False