feat: close v1 feature gaps — freemium gating, video/audio infrastructure, EAS build config

- Add access control service with 3 free workouts (IDs 1, 11, 43), paywall gating on workout detail and lock indicators on explore grid
- Wire VideoPlayer into player background and workout detail preview
- Add placeholder HLS video URLs to 5 sample workouts (Apple test streams)
- Add test audio URLs to music service MOCK_TRACKS for all vibes
- Switch RevenueCat API key to env-based with sandbox fallback
- Create eas.json with development/preview/production build profiles
- Update app.json with iOS privacy descriptions (HealthKit, Camera) and non-exempt encryption flag
- Create collection detail screen (route crash fix)
- Replace hardcoded profile stats with real activity store data
- Add unlockWithPremium i18n key in EN/FR/DE/ES

.env.example

@@ -1,9 +1,13 @@
 # TabataFit Environment Variables
-# Copy this file to .env and fill in your Supabase credentials
+# Copy this file to .env and fill in your credentials
 
 # Supabase Configuration
 EXPO_PUBLIC_SUPABASE_URL=your_supabase_project_url
 EXPO_PUBLIC_SUPABASE_ANON_KEY=your_supabase_anon_key
 
+# RevenueCat (Apple subscriptions)
+# Defaults to test_ sandbox key if not set
+EXPO_PUBLIC_REVENUECAT_API_KEY=your_revenuecat_api_key
+
 # Admin Dashboard (optional - for admin authentication)
 EXPO_PUBLIC_ADMIN_EMAIL=admin@tabatafit.app