dbbb49e5b6
Fixed 8 failing integration tests by addressing two root causes: 1. GlobalExceptionHandler returning incorrect HTTP status codes - Added handling for UnauthorizedAccessException → 401 - Added handling for ArgumentException/InvalidOperationException → 400 - Added handling for DbUpdateException (duplicate key) → 409 - Now correctly maps exception types to HTTP status codes 2. Test isolation issue with shared HttpClient - Modified DatabaseFixture to create new HttpClient for each test - Prevents Authorization header pollution between tests - Ensures clean test state for authentication tests Test Results: - Before: 23/31 passed (8 failed) - After: 31/31 passed (0 failed) Changes: - Enhanced GlobalExceptionHandler with proper status code mapping - Fixed DatabaseFixture.Client to create isolated instances - All authentication and RBAC tests now pass 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>