TanStack Migration Plan

Phase order

1. Users shared pages (/users, /users/:id, mutations) - completed baseline
2. Maintenance shared page
3. System pages (monitor, logs, audit, settings) and analytics

Success criteria

• no duplicate fetch logic inside page components
• stable query keys per feature
• explicit invalidation map per mutation
• no regressions in permission-gated behavior

Current status

• Users list/detail/create pages now use domain query/mutation hooks.
• Users query keys are centralized in src/query/keys.ts.
• Users mutations follow an explicit list/detail invalidation contract.