feat(app): 移除内置agents并添加CORS支持和技能上传优化

移除了agents/registry.json中的所有内置agents配置，将agents数组清空。
为web应用添加了CORS中间件支持，允许指定的前端地址跨域访问。
重构了技能上传功能，增加了LLM重写机制，自动规范化上传的技能格式。
新增了工具名称提取逻辑，从技能正文中自动识别Required Tools段落。
更新了技能学习候选者和草稿的载荷结构，添加评估报告统计信息。
修改了意图路由技能的说明，改进任务状态管理逻辑。

skills/officebench-mcp/versions/v0001/SKILL.md

@@ -1,7 +1,6 @@
 ---
 name: officebench-mcp
 description: Guidance for OfficeBench evaluation tasks. Use the registered mcp_officebench_* tools to inspect and edit OfficeBench files, spreadsheets, documents, emails, calendars, PDFs, and answer files.
-always: true
 tools:
   - mcp_officebench_excel_read_file
   - mcp_officebench_excel_set_cell
@@ -30,13 +29,62 @@ tools:
   - mcp_officebench_system_finish_task
   - mcp_officebench_system_get_status
   - mcp_officebench_image_convert_to_pdf
+always: True
 ---
 
-# OfficeBench MCP Skill
+# Officebench Mcp
+
+## Overview
+
+Guidance for OfficeBench evaluation tasks. Use the registered mcp_officebench_* tools to inspect and edit OfficeBench files, spreadsheets, documents, emails, calendars, PDFs, and answer files.
+
+## When to Use
+
+- Use when the task requires Officebench Mcp guidance.
+
+## Required Tools
+
+- `mcp_officebench_excel_read_file`
+- `mcp_officebench_excel_set_cell`
+- `mcp_officebench_excel_delete_cell`
+- `mcp_officebench_excel_create_new_file`
+- `mcp_officebench_excel_convert_to_pdf`
+- `mcp_officebench_word_read_file`
+- `mcp_officebench_word_write_to_file`
+- `mcp_officebench_word_create_new_file`
+- `mcp_officebench_word_convert_to_pdf`
+- `mcp_officebench_email_list_emails`
+- `mcp_officebench_email_read_email`
+- `mcp_officebench_email_send_email`
+- `mcp_officebench_calendar_create_event`
+- `mcp_officebench_calendar_list_events`
+- `mcp_officebench_calendar_delete_event`
+- `mcp_officebench_pdf_read_file`
+- `mcp_officebench_pdf_convert_to_word`
+- `mcp_officebench_pdf_convert_to_image`
+- `mcp_officebench_ocr_recognize_file`
+- `mcp_officebench_shell_command`
+- `mcp_officebench_shell_list_directory`
+- `mcp_officebench_shell_read_file`
+- `mcp_officebench_shell_write_file`
+- `mcp_officebench_shell_copy_file`
+- `mcp_officebench_system_finish_task`
+- `mcp_officebench_system_get_status`
+- `mcp_officebench_image_convert_to_pdf`
+
+## Workflow
+
+- Identify whether the user's request matches the skill's trigger conditions.
+- Read the relevant source guidance below and apply only the steps that fit the current task.
+- Use the required tools deliberately and keep tool output tied to the user's goal.
+
+### Source Guidance
+
+### OfficeBench MCP Skill
 
 Use this skill for OfficeBench evaluation runs. OfficeBench task files live in the OfficeBench MCP server, not in Beaver's local filesystem. Complete the task by calling real `mcp_officebench_*` tools.
 
-## Critical Rules
+#### Critical Rules
 
 1. Use actual Beaver tool calls only. Do not print XML, DSML, JSON, or markdown that describes a tool call.
 2. Never invent tool names. If you need to find files, use `mcp_officebench_shell_list_directory` or `mcp_officebench_shell_command`.
@@ -47,9 +95,9 @@ Use this skill for OfficeBench evaluation runs. OfficeBench task files live in t
 7. Verify the requested output file or edited cell exists before finishing.
 8. Finish every task with `mcp_officebench_system_finish_task`.
 
-## Tool Names And Use
+#### Tool Names And Use
 
-### Excel
+##### Excel
 
 Use these for `.xlsx` files:
 
@@ -81,7 +129,7 @@ Typical Excel sequence:
 
 For the common task "change Bob's midterm1 score to 100 in score.xlsx", inspect `data/score.xlsx`, find Bob's row and the `midterm1` column, then call `mcp_officebench_excel_set_cell` with that row, that column, and value `100`.
 
-### Word
+##### Word
 
 Use these for `.docx` files:
 
@@ -100,7 +148,7 @@ Use these for `.docx` files:
 
 Preserve exact spelling, capitalization, punctuation, and line order from source files.
 
-### Email
+##### Email
 
 Use these for email tasks:
 
@@ -115,7 +163,7 @@ Use these for email tasks:
 
 For email-search tasks, final answers should use plain text with literal lines like `Subject: ...`. Do not add markdown labels.
 
-### Calendar
+##### Calendar
 
 Use these for calendar `.ics` tasks:
 
@@ -130,7 +178,7 @@ Use these for calendar `.ics` tasks:
 
 Use the task's current date/time context when interpreting relative dates.
 
-### PDF, OCR, And Images
+##### PDF, OCR, And Images
 
 Use these for PDF/image tasks:
 
@@ -152,7 +200,7 @@ Use these for PDF/image tasks:
 
 For conversion tasks, create the exact requested filename and verify it exists.
 
-### Shell And System
+##### Shell And System
 
 Use these for safe file discovery and text files:
 
@@ -177,7 +225,7 @@ Use these for safe file discovery and text files:
 
 Prefer dedicated Office tools for Office documents. Use shell tools for listing directories, copying/renaming files, and reading/writing plain text.
 
-## Anti-Patterns
+#### Anti-Patterns
 
 Do not do any of the following:
 
@@ -188,3 +236,17 @@ Do not do any of the following:
 - Do not use `/testbed` as a literal prefix in path arguments unless a tool explicitly asks for an absolute path.
 - Do not correct misspellings found in source data. Preserve source text exactly.
 
+## Validation
+
+- Verify the requested outcome with the most direct available check.
+- Report any skipped step, unavailable dependency, or remaining uncertainty explicitly.
+
+## Boundaries
+
+- Do not broaden the task beyond the user's request.
+- Do not use tools that are not listed or clearly available in the current runtime.
+
+## Anti-Patterns
+
+- Do not summarize the skill instead of applying it.
+- Do not claim completion without validation evidence.