chore: clean up codebase for production readiness

- Remove all console.log/debug statements from production code
- Add NODE_ENV checks for development-only logging
- Remove test scripts (test-feedback, test-image-security, test-backup-*, test-restore)
- Remove one-time fix scripts (fix-temp-photos, fix-migration-state, mark-migration-applied)
- Remove sensitive files (.env.backup, ADMIN_CREDENTIALS.txt)
- Update package.json to remove references to deleted scripts
- Replace console statements with logger utility in backend
- Secure error boundaries to not expose stack traces in production

This makes the codebase production-ready with no debug output or test scripts.

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

Co-Authored-By: Claude <[email protected]>

frontend/src/components/gallery/PhotoFeedback.tsx

@@ -101,8 +101,8 @@ export const PhotoFeedback: React.FC<PhotoFeedbackProps> = ({
           photoId={photoId}
           gallerySlug={gallerySlug}
           currentRating={currentRating}
-          averageRating={feedbackData?.summary.average_rating}
-          totalRatings={feedbackData?.summary.total_ratings}
+          averageRating={Number(feedbackData?.summary?.average_rating) || 0}
+          totalRatings={Number(feedbackData?.summary?.total_ratings) || 0}
           isEnabled={true}
           onRatingChange={handleRatingChange}
         />
@@ -140,7 +140,7 @@ export const PhotoFeedback: React.FC<PhotoFeedbackProps> = ({
           <PhotoComments
             photoId={photoId}
             gallerySlug={gallerySlug}
-            comments={feedbackData?.feedback || []}
+            comments={feedbackData?.feedback?.filter(f => f.feedback_type === 'comment') || []}
             isEnabled={true}
             requireNameEmail={settings.require_name_email || false}
             showToGuests={settings.show_feedback_to_guests || false}