sync(theme-3): 同步 main 最新 API/Admin 与玩家端逻辑

从 main 同步站内信手动发送、媒体库选择、列表子路由重构等 API/Admin 改动；玩家端仅合并 ADMIN_CUSTOM 富文本、消息预览与充值截图压缩逻辑，保留 theme-3 样式。

apps/api/src/domains/settlement/settlement.service.ts

@@ -388,6 +388,83 @@ export class SettlementService {
     };
   }
 
+  async getActivePreview(
+    matchId: bigint,
+    opts?: { page?: number; pageSize?: number },
+  ) {
+    const batch = await this.prisma.settlementBatch.findFirst({
+      where: { matchId, status: 'PREVIEW' },
+      orderBy: { createdAt: 'desc' },
+    });
+    if (!batch) return null;
+
+    const existingScore = await this.prisma.matchScore.findUnique({
+      where: { matchId },
+    });
+    const computation = await this.computePreviewComputation(matchId, {
+      htHome: batch.htHomeScore ?? 0,
+      htAway: batch.htAwayScore ?? 0,
+      ftHome: batch.ftHomeScore ?? 0,
+      ftAway: batch.ftAwayScore ?? 0,
+      homeCorners: batch.homeCorners ?? null,
+      awayCorners: batch.awayCorners ?? null,
+      homeYellowCards: batch.homeYellowCards ?? null,
+      awayYellowCards: batch.awayYellowCards ?? null,
+      homeRedCards: batch.homeRedCards ?? null,
+      awayRedCards: batch.awayRedCards ?? null,
+      homeCards: batch.homeCards ?? null,
+      awayCards: batch.awayCards ?? null,
+      winnerTeamId: existingScore?.winnerTeamId ?? null,
+    });
+
+    return this.buildPreviewResponse(computation, batch, opts);
+  }
+
+  async getMatchSettlementHistory(matchId: bigint) {
+    const batches = await this.prisma.settlementBatch.findMany({
+      where: { matchId, status: 'CONFIRMED' },
+      orderBy: { confirmedAt: 'desc' },
+    });
+
+    const operatorIds = batches
+      .map((b) => b.operatorId)
+      .filter((id): id is bigint => id !== null);
+
+    const operators =
+      operatorIds.length > 0
+        ? await this.prisma.user.findMany({
+            where: { id: { in: operatorIds } },
+            select: { id: true, username: true },
+          })
+        : [];
+
+    const operatorMap = new Map(operators.map((o) => [o.id.toString(), o.username]));
+
+    return batches.map((b) => ({
+      id: b.id.toString(),
+      batchNo: b.batchNo,
+      htHomeScore: b.htHomeScore,
+      htAwayScore: b.htAwayScore,
+      ftHomeScore: b.ftHomeScore,
+      ftAwayScore: b.ftAwayScore,
+      homeCorners: b.homeCorners,
+      awayCorners: b.awayCorners,
+      homeYellowCards: b.homeYellowCards,
+      awayYellowCards: b.awayYellowCards,
+      homeRedCards: b.homeRedCards,
+      awayRedCards: b.awayRedCards,
+      homeCards: b.homeCards,
+      awayCards: b.awayCards,
+      totalBets: b.totalBets,
+      totalPayout: b.totalPayout.toString(),
+      totalRefund: b.totalRefund.toString(),
+      confirmedAt: b.confirmedAt?.toISOString() ?? null,
+      isResettle: b.isResettle,
+      reason: b.reason,
+      operatorUsername: b.operatorId ? operatorMap.get(b.operatorId.toString()) ?? '—' : '—',
+    }));
+  }
+
   private buildPreviewResponse(
     computation: {
       scoreInput: ScoreInput;