feat(mission): wire Tier 1 emits — rank/free/challenge match events

Adds IMissionProgressService to RankBattle, FreeBattle, ArenaTwoPickBattle, and
ArenaTwoPick controllers. Each finish handler emits the appropriate
MissionEventKeys builder result:

- RankBattle.Finish (win) → Ranked.WinAll(classId)
  Includes AI-rank routes; on a private server AI wins count the same.
- FreeBattle.Finish (win) → Free.WinAll() (aggregates only)
- ArenaTwoPickBattle.Finish → Challenge.MatchPlayAll or MatchWinAll
  Always fires challenge_play; wins additionally fire challenge_win and
  the ranked/arena/daily aggregates.
- ArenaTwoPick.Finish (5-win full clear) → Challenge.FullClearAll
  Gated on RunFinishOutcome.WasFullClear from the previous commit.

This closes six of the eight remaining catalog wire-up gaps; class_level_up
and rank_achieved follow in Tier 2 (need pre-state detection).

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

SVSim.EmulatedEntrypoint/Controllers/FreeBattleController.cs

@@ -4,6 +4,7 @@ using SVSim.BattleNode.Bridge;
 using SVSim.Database;
 using SVSim.Database.Enums;
 using SVSim.Database.Repositories.Viewer;
+using SVSim.Database.Services;
 using SVSim.Database.Services.BattleXp;
 using SVSim.Database.Services.Friend;
 using SVSim.Database.Services.Replay;
@@ -37,6 +38,7 @@ public sealed class FreeBattleController : ControllerBase
     private readonly IPlayedTogetherWriter _playedTogetherWriter;
     private readonly IViewerRepository _viewers;
     private readonly IBattleXpService _xp;
+    private readonly IMissionProgressService _missionProgress;
     private readonly SVSimDbContext _db;
     private readonly ILogger<FreeBattleController> _log;
 
@@ -48,6 +50,7 @@ public sealed class FreeBattleController : ControllerBase
         IPlayedTogetherWriter playedTogetherWriter,
         IViewerRepository viewers,
         IBattleXpService xp,
+        IMissionProgressService missionProgress,
         SVSimDbContext db,
         ILogger<FreeBattleController> log)
     {
@@ -58,6 +61,7 @@ public sealed class FreeBattleController : ControllerBase
         _playedTogetherWriter = playedTogetherWriter;
         _viewers = viewers;
         _xp = xp;
+        _missionProgress = missionProgress;
         _db = db;
         _log = log;
     }
@@ -120,6 +124,13 @@ public sealed class FreeBattleController : ControllerBase
             level = xp.Level == 0 ? 1 : xp.Level;
         }
 
+        // Mission counters — unranked wins feed ranked_or_arena_win + daily_match_win.
+        if (isWin)
+        {
+            await _missionProgress.RecordEventAsync(
+                vid, MissionEventKeys.Free.WinAll(), ct: ct);
+        }
+
         return Ok(new FreeBattleFinishResponseDto
         {
             BattleResult = req.BattleResult,