Add feature opt-ins, dashboard view, and tests

Introduce feature_interests schema + realtime publication and surface opt-in trends in the admin dashboard. Add Jest test infrastructure/coverage for the mobile app and update push-all to run mobile checks before pushing.

Co-authored-by: Claude Code <claude@anthropic.com>

apps/mobile/jest.config.js

@@ -0,0 +1,20 @@
+/** @type {import('jest').Config} */
+module.exports = {
+    preset: 'jest-expo',
+    clearMocks: true,
+    setupFiles: ['<rootDir>/node_modules/react-native-gesture-handler/jestSetup.js'],
+    setupFilesAfterEnv: [
+        '@testing-library/jest-native/extend-expect',
+        '<rootDir>/src/test/setup.ts',
+    ],
+    moduleNameMapper: {
+        '^@/(.*)$': '<rootDir>/src/$1',
+    },
+    testMatch: [
+        '<rootDir>/src/**/__tests__/**/*.(spec|test).(ts|tsx)',
+        '<rootDir>/src/**/*.(spec|test).(ts|tsx)',
+    ],
+    transformIgnorePatterns: [
+        'node_modules/(?!(jest-)?react-native|@react-native|@react-navigation|expo(nent)?|@expo(nent)?/.*|expo-router|react-native-reanimated|react-native-gesture-handler|react-native-safe-area-context|@sentry/react-native|@sentry/.*)',
+    ],
+};