Harden GitLab Wiki Manager

Scope

Production-hardening for the GitLab Wiki Manager service:

• Add rate limiting to API calls
• Implement retry logic with exponential backoff
• Make migrate operation idempotent (safe to re-run)
• Ensure dry-run flag defaults to true (safe by default)

Done When

• Rate limits configured (respect GitLab API limits)
• Retry logic implemented with exponential backoff
• Idempotent migration (skip existing pages by default)
• Dry-run defaults to true in MigrationService
• CI job successfully migrates 1 repo wiki in dry-run mode
• Live migration tested and verified

Current State

✅ Core CRUD operations implemented
✅ Zod validation in place
✅ Service separation (WikiService + MigrationService)
⏳ Production hardening needed

Safety Requirements

• Dry-run first: All migrations default to preview mode
• Idempotent: Safe to re-run migrations without duplication
• Rate-limited: Respect GitLab API constraints
• Resilient: Retry transient failures automatically