feat: explore tab, React Query data layer, programs, sync, analytics, testing infrastructure

- Replace browse tab with Supabase-connected explore tab with filters
- Add React Query for data fetching with loading states
- Add 3 structured programs with weekly progression
- Add Supabase anonymous auth sync service
- Add PostHog analytics with screen tracking and events
- Add comprehensive test strategy (Vitest + Maestro E2E)
- Add RevenueCat subscription system with DEV simulation
- Add i18n translations for new screens (EN/FR/DE/ES)
- Add data deletion modal, sync consent modal
- Add assessment screen and program routes
- Add GitHub Actions CI workflow
- Update activity store with sync integration

skills-lock.json

@@ -0,0 +1,40 @@
+{
+  "version": 1,
+  "skills": {
+    "building-native-ui": {
+      "source": "expo/skills",
+      "sourceType": "github",
+      "computedHash": "342df93f481a0dba919f372d6c7b40d2b4bf5b51dd24363aea2e5d0bae27a6fa"
+    },
+    "expo-api-routes": {
+      "source": "expo/skills",
+      "sourceType": "github",
+      "computedHash": "015c6b849507fda73fcc32d2448f033aaaaa21f5229085342b8421727a90cafb"
+    },
+    "expo-cicd-workflows": {
+      "source": "expo/skills",
+      "sourceType": "github",
+      "computedHash": "700b20b575fcbe75ad238b41a0bd57938abe495e62dc53e05400712ab01ee7c0"
+    },
+    "expo-deployment": {
+      "source": "expo/skills",
+      "sourceType": "github",
+      "computedHash": "9ea9f16374765c1b16764a51bd43a64098921b33f48e94d9c5c1cce24b335c10"
+    },
+    "expo-dev-client": {
+      "source": "expo/skills",
+      "sourceType": "github",
+      "computedHash": "234e2633b7fbcef2d479f8fe8ab20d53d08ed3e4beec7c965da4aff5b43affe7"
+    },
+    "expo-tailwind-setup": {
+      "source": "expo/skills",
+      "sourceType": "github",
+      "computedHash": "d39e806942fe880347f161056729b588a3cb0f1796270eebf52633fe11cfdce1"
+    },
+    "native-data-fetching": {
+      "source": "expo/skills",
+      "sourceType": "github",
+      "computedHash": "6c14e4efb34a9c4759e8b959f82dec328f87dd89a022957c6737086984b9b106"
+    }
+  }
+}