fix(api): 讓週報 preview 顯示資料源沉澱

apps/api/src/api/v1/stats.py

@@ -360,6 +360,11 @@ class WeeklyReportResponse(BaseModel):
     ai_success_rate: float = Field(description="AI 成功率 (%)")
     commits_count: int = Field(description="本週 Commits 數")
     deploy_count: int = Field(description="本週部署次數")
+    source_ok_count: int = Field(default=0, description="報表資料源可讀數")
+    source_total_count: int = Field(default=0, description="報表資料源總數")
+    source_confidence_percent: int = Field(default=0, description="報表資料源可信度")
+    source_gap_ids: list[str] = Field(default_factory=list, description="報表資料源缺口工作項")
+    formatted_preview: str = Field(default="", description="Telegram HTML no-send preview")
 
 
 @router.get(
@@ -385,6 +390,11 @@ async def preview_weekly_report(
         ai_success_rate=report.ai_success_rate,
         commits_count=report.commits_count,
         deploy_count=report.deploy_count,
+        source_ok_count=report.report_source_ok_count,
+        source_total_count=report.report_source_total_count,
+        source_confidence_percent=report.report_source_confidence_percent,
+        source_gap_ids=report.report_source_gap_ids,
+        formatted_preview=report.format(),
     )