## 1. Implementation
- [x] 1.1 Replace broad exception handlers with specific error handling
- [x] 1.2 Fix path normalization for cloud filesystems
- [x] 1.3 Standardize error handling patterns across all operations
- [x] 1.4 Add proper error context and user-friendly messages
- [x] 1.5 Implement consistent exception types and hierarchy

## 2. Testing
- [x] 2.1 Test error handling with various failure scenarios
- [x] 2.2 Test path normalization with S3/GCS paths
- [x] 2.3 Verify no silent failures occur
- [x] 2.4 Test with malformed inputs and edge cases

## 3. Validation
- [x] 3.1 Ensure all error cases are properly logged
- [x] 3.2 Verify error messages are actionable
- [x] 3.3 Test that path normalization works correctly
