Database Row-Level Security Implementation

Implement row-level security for this database:

**Schema:**
```sql
{{SCHEMA}}
```

**Security Requirements:**
{{SECURITY_REQUIREMENTS}}

**User Roles:** {{USER_ROLES}}
**Access Patterns:** {{ACCESS_PATTERNS}}
**Database System:** {{DATABASE_SYSTEM}}

Please provide:
1. RLS policy design
2. CREATE POLICY statements
3. Role and user setup
4. Policy for different operations (SELECT, INSERT, UPDATE, DELETE)
5. Performance impact analysis
6. Testing security policies
7. Bypassing RLS for admin operations
8. Application integration
9. Debugging RLS issues
10. Common pitfalls and solutions