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/flows/gemini-to-whatsapp.yaml

@@ -0,0 +1,37 @@
+name: Ask Gemini and Share to WhatsApp
+---
+# Ask Gemini
+- shell: "am start -n com.google.android.apps.bard/.shellapp.BardEntryPointActivity"
+- wait: 3
+- tap: "Ask Gemini"
+- type: "tell me more about droidclaw.ai"
+- tap: "Send"
+- wait: 20
+
+# Scroll to bottom to find Copy button
+- swipe: up
+- wait: 0.5
+- swipe: up
+- wait: 0.5
+- swipe: up
+- wait: 0.5
+- swipe: up
+- wait: 0.5
+- swipe: up
+- wait: 0.5
+- tap: "Copy"
+
+# Send to WhatsApp
+- launch: com.whatsapp
+- wait: 1
+- tap: "Search"
+- wait: 0.5
+- type: "Vi"
+- wait: 0.5
+- tap: "Vi"
+- wait: 0.5
+- tap: "Message"
+- paste
+- wait: 0.5
+- tap: "Send"
+- done: "Gemini response shared to WhatsApp"