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/types.go

@@ -16,4 +16,4 @@ const (
 	MethodHTTP Method = "http"
 	// No authentication - should only be used for local development and testing
 	MethodNone Method = "none"
-)
+)