feat: manage saved thumbnail plans and select plans for tasks

pigway_frame_flow/api/app.py

@@ -141,6 +141,9 @@ def create_app(settings=None, start_worker=True):
     install_extensions(app, service)
     install_accounts(app, db)
     install_history(app, service)
+    from pigway_frame_flow.api.thumbnails import install_thumbnails
+
+    install_thumbnails(app, service)
     app.state.service = service
     app.state.worker_enabled = start_worker
     app.state.scheduler = scheduler
@@ -986,7 +989,8 @@ def create_app(settings=None, start_worker=True):
         dependencies=[Depends(require("jobs:write"))],
     )
     def create_job(payload: JobInput):
-        return scheduler.save_job(payload)
+        with service.lock:
+            return scheduler.save_job(payload)
 
     @app.put(
         "/api/v1/jobs/{job_id}",
@@ -997,7 +1001,8 @@ def create_app(settings=None, start_worker=True):
     def update_job(job_id: str, payload: JobInput):
         if not db.one("SELECT id FROM jobs WHERE id=?", (job_id,)):
             raise FlowError(E.NOT_FOUND, "Job not found", 404)
-        return scheduler.save_job(payload, job_id)
+        with service.lock:
+            return scheduler.save_job(payload, job_id)
 
     @app.delete(
         "/api/v1/jobs/{job_id}",
@@ -1366,6 +1371,7 @@ def create_app(settings=None, start_worker=True):
     def static(filename: str):
         if filename not in [
             "app.js",
+            "thumbnails.js",
             "features.js",
             "extensions.js",
             "style.css",