feat: Wave 2 - API org isolation + factory.html + insights.html

- Add org_id auto-population to articles.py, publishing.py, metrics.py
- Add org_id filtering to search_rankings.py geo endpoints
- Add org_id to calendar.py create/update/delete endpoints
- Add org_id to tasks.py create endpoints
- Create factory.html content pipeline page (3-tab: 待创作/进行中/待审查)
- Create insights.html analytics page (4-tab: 概览/搜索排名/GEO/平台对比)

platform/backend/app/api/search_rankings.py

@@ -86,7 +86,10 @@ def get_geo_overview(
     """GEO 概览 — AI 搜索引用 + 就绪度评分"""
     cutoff = datetime.now(timezone.utc) - timedelta(days=days)
 
-    base = db.query(SearchRanking).filter(SearchRanking.checked_at >= cutoff)
+    # Filter geo checks by org via articles
+    base = db.query(SearchRanking)
+    base = _apply_org_filter(base, current_user, db)
+    base = base.filter(SearchRanking.checked_at >= cutoff)
     total_geo = base.filter(SearchRanking.search_engine == "geo").count()
     total_cited = base.filter(
         SearchRanking.search_engine == "geo",
@@ -138,7 +141,14 @@ def get_geo_readiness_scores(
 ):
     """获取 GEO 就绪度评分列表"""
     cutoff = datetime.now(timezone.utc) - timedelta(days=days)
-    scores = db.query(GeoReadinessScore).filter(
+    # Join via articles to filter by org
+    scores_query = db.query(GeoReadinessScore).join(
+        ArticleModel, GeoReadinessScore.article_id == ArticleModel.id, isouter=True
+    )
+    of = org_filter(current_user, ArticleModel)
+    if of is not True:
+        scores_query = scores_query.filter(of)
+    scores = scores_query.filter(
         GeoReadinessScore.checked_at >= cutoff
     ).order_by(desc(GeoReadinessScore.checked_at)).limit(limit).all()
     return {"ok": True, "data": [s.to_dict() for s in scores]}