Apply gofmt formatting to all Go files (#588)

## Summary
- Applied `gofmt -s -w` across the entire codebase to ensure consistent
Go formatting
- This will trigger a deployment with minimal code changes

## Test plan
- [x] Pre-commit hooks pass
- [x] No functional changes, formatting only

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-authored-by: Claude <noreply@anthropic.com>

internal/auth/blocks.go

@@ -6,4 +6,4 @@ var BlockedNamespaces = []string{
 	// Add blocked namespaces here, e.g.:
 	// "io.github.spammer",
 	// "com.evil-domain",
-}
+}