fix: Show waiting message during startup instead of hanging spinners

Partials now return "Waiting for first cycle to complete…" instantly
during startup instead of calling arr APIs that may hang. SSE cycle_end
already triggers auto-refresh so no manual page reload is needed.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: lolimmlost

src/web/app.py

@@ -9,7 +9,7 @@
 
 from src.web.config_manager import ConfigManager
 from src.web.database import ActivityRecorder, Database
-from src.web.events import EventBus
+from src.web.events import EventBus, EventType
 from src.web.routes import api_router, page_router
 
 
@@ -28,6 +28,7 @@ def create_app(settings, event_bus: EventBus, trigger_event: asyncio.Event = Non
     app.state.templates = templates
     app.state.start_time = time.time()
     app.state.trigger_event = trigger_event
+    app.state.first_cycle_done = False
 
     # Register routes
     app.include_router(api_router)
@@ -58,6 +59,21 @@ async def start_web_server(settings, event_bus: EventBus, trigger_event: asyncio
     await recorder.start()
     app.state.recorder = recorder
 
+    # Track when the first main-loop cycle finishes so partials can show
+    # a "waiting" message instead of hanging on arr API calls during startup.
+    async def _mark_first_cycle_done():
+        queue = event_bus.subscribe()
+        try:
+            while True:
+                event = await queue.get()
+                if event.event_type == EventType.CYCLE_END:
+                    app.state.first_cycle_done = True
+                    break
+        finally:
+            event_bus.unsubscribe(queue)
+
+    asyncio.create_task(_mark_first_cycle_done())
+
     # Schedule daily cleanup of old activity log entries
     async def _periodic_cleanup():
         while True:

src/web/routes.py

@@ -456,6 +456,10 @@ async def page_settings(request: Request):
 @page_router.get("/partials/queue-table", response_class=HTMLResponse)
 async def partial_queue_table(request: Request):
     templates = request.app.state.templates
+    if not getattr(request.app.state, "first_cycle_done", True):
+        return HTMLResponse(
+            '<p><em>Waiting for first cycle to complete\u2026</em></p>'
+        )
     items = await _fetch_queue(request)
     return templates.TemplateResponse("partials/queue_table.html", {
         "request": request,
@@ -468,6 +472,10 @@ async def partial_queue_table(request: Request):
 async def partial_activity_feed(request: Request):
     templates = request.app.state.templates
     db = request.app.state.database
+    if not getattr(request.app.state, "first_cycle_done", True):
+        return HTMLResponse(
+            '<p><em>Waiting for first cycle to complete\u2026</em></p>'
+        )
     cursor = await db.db.execute(
         "SELECT * FROM activity_log ORDER BY timestamp DESC LIMIT 20"
     )