feat: add DB persistence, real-time WebSocket, goal preprocessor, and Android companion app

- Add device/session/step DB persistence in server agent loop
- Add goal preprocessor for compound goals (e.g., "open YouTube and search X")
- Add step-level logging to agent loop
- Fix dashboard WebSocket auth (direct DB token lookup instead of auth.api)
- Fix web layout to use locals.session.token instead of cookie
- Add dashboard-ws.svelte.ts WebSocket store with auto-reconnect
- Rewrite devices page with direct DB queries and real-time updates
- Add device detail page with live step display and session history
- Add Android companion app resources, themes, and screen capture consent

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

examples/workflows/research/gemini-to-whatsapp.json

@@ -3,7 +3,7 @@
   "steps": [
     {
       "app": "com.google.android.apps.bard",
-      "goal": "Type 'tell me more about duntasks.com' in the text input field and tap send. Wait for the full AI response to load before marking done.",
+      "goal": "Type 'tell me more about droidclaw.ai' in the text input field and tap send. Wait for the full AI response to load before marking done.",
       "maxSteps": 10
     },
     {