chore: initial baseline with P0-safety .gitignore

docs/diagrams/admin-quick-reply-review-sequence.mermaid

@@ -0,0 +1,23 @@
+sequenceDiagram
+    participant A as 坐席(王丽)
+    participant AG as /api/quick-replies
+    participant U as 管理员(宋献)
+    participant ADM as /api/admin/quick-replies
+    participant DB as PostgreSQL
+
+    A->>AG: POST /api/quick-replies (创建模板, status=draft)
+    A->>AG: PUT /api/quick-replies/{id} (提交审核, status→pending_review)
+    AG->>DB: UPDATE QuickReplyTemplate SET status='pending_review', submitted_by='wang_li'
+
+    U->>ADM: GET /api/admin/quick-replies/pending
+    ADM->>DB: SELECT WHERE status='pending_review'
+    DB-->>ADM: 待审核列表
+    ADM-->>U: 显示待审核模板
+
+    U->>ADM: PUT /api/admin/quick-replies/{id}/review (action=approve)
+    ADM->>DB: UPDATE SET status='approved', version=version+1
+    DB-->>ADM: 更新成功
+
+    A->>AG: GET /api/quick-replies (获取可见模板)
+    AG->>DB: SELECT WHERE status='approved' OR (status='pending_review' AND submitted_by=自己)
+    DB-->>AG: 全员可见(approved) + 仅自己(pending_review)