feat(遊戲化): 新增大廳、附身、時間流、後日談進度等遊戲化系統功能

新增角色大廳（lobby）邀約與通話、附身（possession）、時鐘（clock）抽象、
時間流與睡眠負債、後日談進度、行為選擇與旁觀反應等模組，並補齊對應冒煙
測試（R~V）與單元測試；同步調整 web/mobile 對應頁面與元件。

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

apps/api/src/task/task.service.ts

@@ -43,7 +43,15 @@ export class TaskService {
   async create(
     characterId: string,
     userId: string,
-    input: { type: "ONE_TIME" | "RECURRING" | "CONDITIONAL" | "QUERY_ORGANIZE" | "TODO_TRACKING"; content: string; rawText: string; triggerAt?: Date; cronExpression?: string; condition?: string },
+    input: {
+      type: "ONE_TIME" | "RECURRING" | "CONDITIONAL" | "QUERY_ORGANIZE" | "TODO_TRACKING";
+      content: string;
+      rawText: string;
+      triggerAt?: Date;
+      cronExpression?: string;
+      condition?: string;
+      sourceRoomId?: string; // T7：房內自走委託的來源房間，供追溯到來源房間與該則發言
+    },
     now: Date = new Date(),
   ): Promise<CreateTaskResult> {
     const character = await this.prisma.client.character.findUniqueOrThrow({ where: { id: characterId } });
@@ -64,6 +72,7 @@ export class TaskService {
         triggerAt: input.triggerAt,
         cronExpression: input.cronExpression,
         condition: input.condition,
+        sourceRoomId: input.sourceRoomId,
       },
     });