feat: Phase 4 多租户隔离 + 四阶段升级测试 + CSS 统一化

Phase 4: org_id 注入 JWT/API 过滤/组织管理 CRUD/前端组织列
测试: tests/test_phase_upgrades.py 97项全覆盖
CSS: theme-modern.css 共享 mobile-card-list/status-dot/search-bar 等模式
修复: initial_data.py LLM配置 NOT NULL 约束, TopicResponse 含 org_id

scripts/creator.py

@@ -102,13 +102,16 @@ def run_pipeline(topic_id: str = None) -> Dict:
             update_topic_status(tid, 'pending')
             return {"ok": False, "error": "writer step failed"}
 
-        # 4. 合规优化（自动审核并标记为「待发布」）
+        # 4. 配图生成
+        image_ok = run_step("image_generator.py", tid)
+
+        # 5. 合规优化（自动审核并标记为「待发布」）
         if not run_optimizer_step(tid):
             update_topic_status(tid, 'pending')
             return {"ok": False, "error": "optimizer step failed"}
 
         logger.info(f"创作流水线完成: topic_id={tid}")
-        return {"ok": True, "topic_id": tid, "stdout": f"SUCCESS: Topic {tid} processed through full pipeline"}
+        return {"ok": True, "topic_id": tid, "stdout": f"SUCCESS: Topic {tid} processed through full pipeline{' (images generated)' if image_ok else ' (images skipped)'}"}
     except Exception as e:
         logger.exception("流水线执行失败")
         if tid: