Add mobile services, web proxy, and Gemma4 agent loop

- Mobile: add push notification and calendar sync services with full test suite (calendar, eventStore, notifications,
  screens)
- Mobile: add EAS build config and Jest setup
- Web: add API proxy, update useDestinationStation/useJourneys hooks, add middleware tests
- Web: update next.config and rebuild
- Agent: add Gemma4-based agent loop (agent_base, ttl_agent, ts_agent)
- Docs: add privacy policy, post-MVP plan, and aider rules

apps/mobile/package.json

@@ -7,8 +7,9 @@
     "android": "expo start --android",
     "ios": "expo start --ios",
     "web": "expo start --web",
-    "typecheck": "tsc --noEmit",
-    "lint": "echo 'no lint yet'"
+    "typecheck": "tsc --noEmit -p tsconfig.typecheck.json",
+    "lint": "echo 'no lint yet'",
+    "test": "jest"
   },
   "dependencies": {
     "@react-native-async-storage/async-storage": "^3.0.2",
@@ -17,16 +18,23 @@
     "@timetoleave/api-client": "*",
     "@timetoleave/core": "*",
     "expo": "~54.0.33",
+    "expo-calendar": "^55.0.14",
     "expo-location": "^55.1.9",
     "expo-notifications": "^55.0.22",
     "expo-status-bar": "~3.0.9",
-    "react": "19.1.0",
+    "react": "19.2.4",
     "react-native": "0.81.5",
     "react-native-safe-area-context": "^5.7.0",
     "react-native-screens": "^4.24.0"
   },
   "devDependencies": {
-    "@types/react": "~19.1.0",
+    "@testing-library/react-native": "^13.3.3",
+    "@types/jest": "^30.0.0",
+    "@types/react": "^19",
+    "jest": "^29.7.0",
+    "jest-expo": "~54.0.0",
+    "react-test-renderer": "19.2.4",
+    "ts-jest": "^29.4.9",
     "typescript": "~5.9.2"
   },
   "private": true