Server-authoritative economy: wire client to server; entry + rewards on hub

Server:
- daily (/api/daily, /api/daily/claim) + shop (/api/shop/buy) + ChargeEntry
- GameRoom (via IServiceScopeFactory) deducts ranked entry at match start and
  applies match rewards at match-over, broadcasting profile + reward over the hub
- tested: daily, shop (owned-guard), ranked entry deduction pushed over hub

Client:
- SignalrService routes profile/coins/plan/daily/shop/match to the server (Bearer);
  onProfile/onReward hub events; guest/offline fall back to local
- session-store syncs profile from hub; game-store serverReward; GameScreen shows
  live ranked reward from hub (no double submit), submits client-run games
- single source of truth in live mode (no economy divergence)

Postgres-ready via config (Provider=postgres); EnsureCreated for now.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

server/src/Hokm.Server/Game/GameManager.cs

@@ -1,6 +1,7 @@
 using System.Collections.Concurrent;
 using Hokm.Server.Hubs;
 using Microsoft.AspNetCore.SignalR;
+using Microsoft.Extensions.DependencyInjection;
 
 namespace Hokm.Server.Game;
 
@@ -24,13 +25,18 @@ public sealed class GameManager
         { "a-fox", "a-lion", "a-owl", "a-tiger", "a-panda", "a-eagle", "a-wolf", "a-cat" };
 
     private readonly IHubContext<GameHub> _hub;
+    private readonly IServiceScopeFactory _scopes;
     private readonly ConcurrentDictionary<string, GameRoom> _rooms = new();
     private readonly ConcurrentDictionary<string, string> _userRoom = new(); // userId -> roomId
     private readonly object _mmLock = new();
     private readonly List<(Player player, Timer timer)> _waiting = new();
     private readonly Random _rng = new();
 
-    public GameManager(IHubContext<GameHub> hub) => _hub = hub;
+    public GameManager(IHubContext<GameHub> hub, IServiceScopeFactory scopes)
+    {
+        _hub = hub;
+        _scopes = scopes;
+    }
 
     /* ----------------------------- matchmaking ------------------------- */
 
@@ -105,7 +111,7 @@ public sealed class GameManager
             }
         }
 
-        var room = new GameRoom(_hub, seats, ranked: true, stake: 100, targetScore: 7);
+        var room = new GameRoom(_hub, _scopes, seats, ranked: true, stake: 100, targetScore: 7);
         room.OnFinished = FinishRoom;
         _rooms[room.Id] = room;
         foreach (var h in humans) _userRoom[h.UserId] = room.Id;