🐛 Patch Changes
- 264271c: Create packages/shared to centralize duplicated constants, types, and utilities across backend, frontend, and plugin. Moves TIERS, TIER_LABELS, AUTH_TYPES, API_KEY_PREFIX, MODEL_PREFIX_MAP, inferProviderFromModel, ResolveResponse, and subscription-capabilities into a single source of truth.
- 66412b2: Clean up model pricing cache: return ReadonlyMap from PricingSyncService, remove dead code, derive provider prefixes from registry, fix naming inconsistencies
- ec6c984: Remove dead EmailConfigController, unused API endpoints, and orphaned frontend functions
- 1a728fe: Remove unused security module, endpoint, entity, and seeder