feat: Enhance UgcPurchasablesController to handle bulk requests with object arrays

- Updated Bulk method to parse incoming JSON object arrays for UGC item IDs.
- Introduced ReadBulkIdsAsync to handle both object arrays and flat GUID lists.
- Added synthetic placeholder responses for missing UGC items to prevent client errors.

feat: Implement MatchmakeRoom and MatchmakeSubRoom endpoints in GoToController

- Added MatchmakeRoom and MatchmakeSubRoom methods to facilitate joining public and sub-rooms by numeric ID.
- Enhanced ApplySubRoomMutation to ensure proper state transitions for sub-rooms.
- Improved logging for matchmaking actions.

fix: Refactor PlayerSettingsController to handle database save exceptions

- Introduced SaveSettingsChangesAsync to manage DbUpdateException for busy SQLite scenarios.
- Updated methods to call SaveSettingsChangesAsync instead of direct SaveChangesAsync.

chore: Update URL coverage documentation for new matchmaking endpoints

- Documented new MatchmakeRoom and MatchmakeSubRoom endpoints in url-coverage.md.

chore: Add default room data file for room loading

- Included default_room.room to serve as a fallback for missing room data.

fix: Improve SQLite concurrency handling in DatabaseBootstrap

- Configured SQLite to use WAL mode and set a busy timeout for better concurrency.

chore: Create SqliteErrors utility for handling SQLite exceptions

- Added SqliteErrors class to encapsulate logic for detecting busy SQLite exceptions.

refactor: Update RoomDataBlobService to serve default room data

- Modified GetDefaultBlob to load and serve a default room blob with proper role data.

DorkNet.Server/Data/SqliteErrors.cs

@@ -0,0 +1,19 @@
+using Microsoft.Data.Sqlite;
+using Microsoft.EntityFrameworkCore;
+
+namespace DorkNet.Server.Data;
+
+internal static class SqliteErrors
+{
+    public static bool IsBusy(DbUpdateException ex)
+    {
+        for (Exception? current = ex; current is not null; current = current.InnerException)
+        {
+            if (current is SqliteException sqlite &&
+                (sqlite.SqliteErrorCode == 5 || sqlite.SqliteErrorCode == 6))
+                return true;
+        }
+
+        return false;
+    }
+}

DorkNet.Server/Data/url-coverage.md

@@ -377,6 +377,10 @@ These all live on `match.rec.net` (locally: `match.localhost`).
 | POST | `goto/player/{playerId}` | REAL | `Match.GoToController.GoToPlayer` — uses `PlayerPresenceService` to find where the target is and routes the caller there |
 | POST | `goto/instance/{instanceId}` | REAL | `Match.GoToController.GoToInstance` — direct join to a specific room instance |
 | POST | `goto/invite/{inviteId}` | REAL | `Match.GoToController.GoToInvite` — resolves an invite to its target room/instance |
+| POST/GET | `matchmake/room/{roomId}` | REAL | `Match.GoToController.MatchmakeRoom` — the 2023 client's "join this public room" call (navigates by numeric id, not name). Reuses `BuildResponseAsync`; without it every public-room join 404s and the player bounces to dorm |
+| POST/GET | `matchmake/room/{roomId}/{subRoomId}` | REAL | `Match.GoToController.MatchmakeSubRoom` — sub-room form; resolves the `RoomScenes` row by `OrderIndex` |
+| POST | `matchmake/dorm` | REAL | `Match.MatchController.MatchmakeDorm` — builds the caller's personal-dorm `RoomInstance` |
+| POST | `matchmake/none` | REAL | `Match.MatchController.MatchmakeNone` — returns the caller's current room (or dorm) without changing it |
 | POST | `player/heartbeat` | REAL | `Match.MatchPlayerController.Heartbeat` — refreshes the caller's `PlayerPresenceService` entry; also has a duplicate in `ApiNamespaceStubsController.Heartbeat` for the api-host case |
 
 ## Catch-all wildcards (informational)