feat: Agent 批量测试、作业助手与上传预览；Windows 启动脚本与文档- 新增 run_agent_test_cases 与示例 JSON、(红头)agent测试用例文档

- 扩展 test_agent_execution（--homework、UTF-8 控制台）
- 后端：uploads 预览、file_read、工作流与对话落盘等
- 前端：AgentChatPreview 与设计器相关调整
- 忽略 redis二进制、agent_workspaces、uploads、tessdata 等本机产物

Made-with: Cursor

backend/app/tasks/workflow_tasks.py

@@ -18,6 +18,7 @@ from app.models.execution import Execution
 from app.models.agent import Agent
 from app.models.workflow import Workflow
 from app.services.execution_budget import merge_budget_for_execution
+from app.services.agent_workspace_chat_log import try_append_agent_dialogue_after_success
 import asyncio
 import time
 from typing import Any, Dict, Optional
@@ -141,7 +142,11 @@ def execute_workflow_task(
             execution.execution_time = execution_time
             execution.pause_state = None
             db.commit()
-        
+
+        try_append_agent_dialogue_after_success(
+            db, execution, input_data, result, execution_logger
+        )
+
         # 记录执行完成日志
         execution_logger.info(f"工作流任务执行完成，耗时: {execution_time}ms")
         
@@ -325,6 +330,10 @@ def resume_workflow_task(
             ex3.pause_state = None
             db.commit()
 
+        try_append_agent_dialogue_after_success(
+            db, ex3, base_input, result, execution_logger
+        )
+
         if execution_logger:
             execution_logger.info(f"审批后工作流执行完成，耗时: {execution_time}ms")