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- Social: EF-backed friends graph + chat (SocialService/SocialModels); REST endpoints (friends add/accept/decline/remove/list/requests, chat conversations/messages/send) with real-time hub events (friendRequest/social/chat). GameManager tracks online users for presence. - Client SignalrService: friends + chat now hit the server and react to hub events (refetch + emit); no longer delegated to the mock. - IAB: /api/coins/iab/verify endpoint + IabVerifyReq for Cafe Bazaar/Myket (token verification is a documented TODO pending store accounts/SKUs). - Persistence: EF Core Design package + DesignTimeDbContextFactory (Postgres), Program auto-migrate/EnsureCreated, appsettings.Production.json.example with Supabase connection + live ZarinPal template. Verified end-to-end (two users, SQLite dev): request -> accept -> bidirectional friends, chat send with per-user fromMe, unread count + read-on-fetch. Server + client builds clean (dotnet build, tsc, next build). Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>