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

vitest.config.render.ts

@@ -0,0 +1,33 @@
+import { defineConfig } from 'vitest/config'
+import { resolve } from 'path'
+
+export default defineConfig({
+  test: {
+    globals: true,
+    environment: 'jsdom',
+    setupFiles: ['./src/__tests__/setup-render.tsx'],
+    include: ['src/__tests__/components/rendering/**/*.test.tsx', 'src/__tests__/integration/*.render.test.tsx'],
+    testTimeout: 15000,
+    hookTimeout: 15000,
+    pool: 'forks',
+    execArgv: ['--require', resolve(__dirname, 'src/__tests__/mocks/preload-rn-mock.cjs')],
+    server: {
+      deps: {
+        inline: [
+          '@testing-library/react-native',
+          'react-native-reanimated',
+          'react-native-gesture-handler',
+          'react-native-screens',
+          'react-native-safe-area-context',
+          'react-native-svg',
+        ],
+      },
+    },
+  },
+  resolve: {
+    alias: {
+      '@': resolve(__dirname, '.'),
+      'react-native': resolve(__dirname, 'src/__tests__/mocks/react-native.ts'),
+    },
+  },
+})