v0.2.1

Linter fixes, no functional changes.

🐛 Bug fixes

Unchecked error returns — ScheduleStore.Update calls now properly check and propagate errors.

Unnecessary fmt.Sprintf — Removed redundant fmt.Sprintf wrappers in JWT middleware error responses.

Defer in infinite loop — resp.Body.Close() was deferred inside an infinite loop and would never run. Now closed explicitly after use.