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]>

docker-compose.yml

@@ -41,7 +41,7 @@ services:
       postgres:
         condition: service_healthy
     healthcheck:
-      test: ["CMD", "wget", "--quiet", "--tries=1", "--spider", "http://localhost:3001/api/health"]
+      test: ["CMD", "wget", "--quiet", "--tries=1", "--spider", "http://127.0.0.1:3001/health"]
       interval: 30s
       timeout: 10s
       retries: 3
@@ -107,7 +107,7 @@ services:
     depends_on:
       - backend
     healthcheck:
-      test: ["CMD", "wget", "--quiet", "--tries=1", "--spider", "http://localhost:80"]
+      test: ["CMD", "wget", "--quiet", "--tries=1", "--spider", "http://127.0.0.1/health"]
       interval: 30s
       timeout: 10s
       retries: 3