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>

web/drizzle.config.ts

@@ -0,0 +1,11 @@
+import { defineConfig } from 'drizzle-kit';
+
+if (!process.env.DATABASE_URL) throw new Error('DATABASE_URL is not set');
+
+export default defineConfig({
+	schema: './src/lib/server/db/schema.ts',
+	dialect: 'postgresql',
+	dbCredentials: { url: process.env.DATABASE_URL },
+	verbose: true,
+	strict: true
+});