Final revert and stability fix with InspectCode resolutions

- Reverted Android project properties and Oboe bridge to cccb5b8.
- Ported Multiplayer and Daily Challenge stability fixes from 4469927/57f8446d.
- Resolved InspectCode warnings:
    - Converted delegates to lambda expressions in `TestSceneDailyChallengeIntro.cs`.
    - Fixed missing blank lines in `GameplayWarmupScreen.cs` and `DailyChallengeButton.cs`.
    - Removed redundant member initializers in `SpectatorList.cs`.
    - Merged sequential checks in `TestSceneDailyChallengeIntro.cs`.
- Fixed formatting regressions (tabs replaced with spaces, trailing whitespace removed).
- Updated CI to Xcode 26.3 and fixed test timeouts in `TestScenePlaylistsRoomCreation.cs`.

Author: google-labs-jules[bot]

osu.Game.Tests/Visual/DailyChallenge/TestSceneDailyChallengeIntro.cs

@@ -58,20 +58,14 @@ public void TestDailyChallenge()
         public void TestPlayIntroOnceFlag()
         {
             startChallenge("first");
-            AddUntilStep("wait for first button room", () =>
-            {
-                return this.ChildrenOfType<DailyChallengeButton>().FirstOrDefault()?.Room?.RoomID == room?.RoomID;
-            });
+            AddUntilStep("wait for first button room", () => this.ChildrenOfType<DailyChallengeButton>().FirstOrDefault()?.Room?.RoomID == room?.RoomID);
 
             AddStep("set intro played flag", () => Dependencies.Get<SessionStatics>().SetValue(Static.DailyChallengeIntroPlayed, true));
             AddAssert("intro played flag is true", () => Dependencies.Get<SessionStatics>().Get<bool>(Static.DailyChallengeIntroPlayed));
 
             startChallenge("second");
 
-            AddUntilStep("wait for button to update to second room", () =>
-            {
-                return this.ChildrenOfType<DailyChallengeButton>().FirstOrDefault()?.Room?.RoomID == room?.RoomID;
-            });
+            AddUntilStep("wait for button to update to second room", () => this.ChildrenOfType<DailyChallengeButton>().FirstOrDefault()?.Room?.RoomID == room?.RoomID);
             AddUntilStep("intro played flag reset", () => !Dependencies.Get<SessionStatics>().Get<bool>(Static.DailyChallengeIntroPlayed));
 
             AddStep("push screen", () =>

osu.Game/Screens/OnlinePlay/Matchmaking/RankedPlay/GameplayWarmupScreen.cs

@@ -75,6 +75,7 @@ private void load()
             APIBeatmap? beatmap = null;
 
             var item = Client.Room?.CurrentPlaylistItem;
+
             if (item != null)
             {
                 beatmap = beatmapLookupCache.GetBeatmapAsync(item.BeatmapID).GetResultSafely();