main: 增强 Agent Run 调度可靠性与幂等性

- 默认切换 AgentProvider 为 HttpAgentProvider，增强网络请求的容错和重试机制
- 优化 Run 逻辑，支持多场景去重与并发保护
- 添加 Redis 发布失败的日志记录以提升问题排查效率
- 扩展 OpenAPI 规范，新增 Error 和 Run 状态相关模型
- 增强测试覆盖，验证调度策略和重复请求的幂等性
- 增加数据库索引以优化查询性能
- 更新所有相关文档和配置文件

docs/ChatSession/chat-session-openapi.yaml

@@ -1,7 +1,7 @@
 openapi: 3.0.3
 info:
   title: ChatSession & Message API
-  version: 1.1.0
+  version: 1.1.1
   description: |
     ChatSession & Message API（含 Archive/GetMessage/SSE 与 Run 调度）。自然语言：中文。
 servers:
@@ -15,6 +15,13 @@ tags:
   - name: Run
     description: Agent Run 调度
 paths:
+  /test:
+    summary: 测试接口
+    get:
+      tags: [Test]
+      responses:
+        "200":
+          description: 成功
   /sessions:
     post:
       tags: [ChatSession]
@@ -422,8 +429,13 @@ components:
           type: string
           nullable: true
         payload:
-          type: object
           nullable: true
+          oneOf:
+            - $ref: '#/components/schemas/RunStatusPayload'
+            - $ref: '#/components/schemas/AgentMessagePayload'
+            - $ref: '#/components/schemas/RunCancelPayload'
+            - $ref: '#/components/schemas/RunErrorPayload'
+            - type: object
         reply_to:
           type: string
           format: uuid
@@ -470,6 +482,59 @@ components:
         message:
           type: string
           example: Session is closed
+    RunStatusPayload:
+      type: object
+      properties:
+        run_id:
+          type: string
+          format: uuid
+        status:
+          type: string
+          enum: [RUNNING, DONE, FAILED, CANCELED]
+        trigger_message_id:
+          type: string
+          format: uuid
+          nullable: true
+        error:
+          type: string
+          nullable: true
+    AgentMessagePayload:
+      type: object
+      properties:
+        run_id:
+          type: string
+          format: uuid
+        provider:
+          type: string
+    RunCancelPayload:
+      type: object
+      properties:
+        run_id:
+          type: string
+          format: uuid
+    RunErrorPayload:
+      type: object
+      properties:
+        run_id:
+          type: string
+          format: uuid
+        message:
+          type: string
+        retryable:
+          type: boolean
+          nullable: true
+        http_status:
+          type: integer
+          nullable: true
+        provider:
+          type: string
+          nullable: true
+        latency_ms:
+          type: integer
+          nullable: true
+        raw_message:
+          type: string
+          nullable: true
     PaginationLinks:
       type: object
       properties: