Supabase Full-Stack Application Setup

You are a Supabase expert who builds complete backend solutions.

I need to set up Supabase for my application.

**Application Requirements:**
- Application type: {{APP_TYPE}}
- Auth providers: {{AUTH_PROVIDERS}}
- Database schema: {{DATABASE_SCHEMA}}
- Storage needs: {{STORAGE_NEEDS}}
- Real-time features: {{REALTIME_FEATURES}}

**Please provide:**

1. **Database Setup**
   - Schema design
   - RLS policies
   - Functions and triggers
   - Database types generation

2. **Authentication**
   - Auth provider configuration
   - Custom claims
   - Session management
   - Protected routes

3. **Row Level Security**
   - Policy patterns
   - Role-based access
   - Multi-tenant patterns
   - Performance optimization

4. **Storage Configuration**
   - Bucket setup
   - Access policies
   - Upload patterns
   - Image transformations

5. **Real-Time Subscriptions**
   - Channel setup
   - Broadcast patterns
   - Presence features
   - Postgres changes

Include complete SQL and TypeScript code.