feat: 内容数据迁移至数据库，合规审查全链路打通

- 文章 HTML 存储从文件系统迁移至 articles 表，删除 releases 目录
- 合规审查从 DB 读取 HTML，审查结果写回 DB，通过后自动推进至待发布
- 新增 todayCount 筛选按钮，与系统概览统计数据一致
- 全屏预览修复：提升 z-index 超过侧边栏，添加退出全屏/关闭按钮
- 统一 '优化' → '审查' 命名，消除前后端术语不一致
- 调度器创作完成后自动触发审查（生成 → 审查 → 待发布）
- 清理旧备份/调试文件、过期大纲和研究笔记

platform/backend/app/core/scheduler.py

@@ -60,8 +60,16 @@ class TaskScheduler:
             logger.info("[Scheduled] Starting content generation...")
             result = run_creator()
             logger.info("[Scheduled] Generation completed: %s", result)
+            created_id = result.get("topic_id") if isinstance(result, dict) else None
+            if created_id:
+                logger.info("[Scheduled] Running compliance review on %s...", created_id)
+                review_result = run_optimizer([created_id])
+                if review_result.get("ok"):
+                    logger.info("[Scheduled] Review completed for %s", created_id)
+                else:
+                    logger.warning("[Scheduled] Review failed: %s", review_result.get("error"))
         except Exception as e:
-            logger.exception("[Scheduled] Generation failed: %s", e)
+            logger.exception("[Scheduled] Generation pipeline failed: %s", e)
 
     def _run_optimize(self):
         try: