- Create @Cacheable method decorator for declarative cache-aside pattern
with configurable prefix, TTL, resource label, and key extraction
- Add PLAN_LIST (1h TTL) and REFERENCE_DATA (24h TTL) cache constants
- Add CachePrefix.PLAN_LIST and CachePrefix.REFERENCE entries
- Cache subscription plan queries in GetPlanHandler (single + list)
- Export Cacheable decorator from shared module barrel
- Add comprehensive tests for decorator and handler caching
The caching infrastructure (CacheService, Redis, Prometheus metrics,
event-driven invalidation) was already production-ready with 10+ hot
paths cached. This commit adds the missing declarative decorator and
plan list caching.
Resolves: TEC-1567
Co-Authored-By: Paperclip <noreply@paperclip.ing>
Add 1-min TTL caching to CheckQuotaHandler (previously uncached, hitting
3 DB queries per guarded request). Add cache invalidation to
MeterUsageHandler and UpgradeSubscriptionHandler so quota caches stay
fresh after usage metering and plan changes. Increase search results TTL
from 1min to 2min per spec. Add market cache invalidation on listing
creation to keep district stats and market reports consistent.
Co-Authored-By: Paperclip <noreply@paperclip.ing>
Update cache service with better error handling and analytics
query handlers to use consistent caching patterns.
Co-Authored-By: Paperclip <noreply@paperclip.ing>