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/terminal-operation/versions/v0001/version.json

@@ -1,12 +1,16 @@
 {
   "change_reason": "Initial skill for terminal and process management",
-  "content_hash": "placeholder",
+  "content_hash": "2d122feb0963e072faa627ca644fff0b39aa7ff3a6a502f8b313bb26d7aee154",
   "created_at": "2026-05-26T00:00:00.000000+00:00",
   "created_by": "system",
   "frontmatter": {
     "description": "Shell 命令执行、后台进程管理和 Python 代码执行。支持超时控制和后台运行。",
     "name": "terminal-operation",
-    "tools": ["terminal", "process", "execute_code"]
+    "tools": [
+      "terminal",
+      "process",
+      "execute_code"
+    ]
   },
   "parent_version": null,
   "provenance": {
@@ -15,8 +19,12 @@
   },
   "review_state": "published",
   "skill_name": "terminal-operation",
-  "summary": "Terminal Operation — Shell 命令执行、后台进程管理、Python 代码执行",
-  "summary_hash": "placeholder",
-  "tool_hints": ["terminal", "process", "execute_code"],
+  "summary": "# Terminal Operation ## Overview Shell 命令执行、后台进程管理和 Python 代码执行。支持超时控制和后台运行。",
+  "summary_hash": "8571fa76cc5e5aa682bd9503d45e91e4f111e6ef9d64152a69efa0462ae04294",
+  "tool_hints": [
+    "terminal",
+    "process",
+    "execute_code"
+  ],
   "version": "v0001"
-}
+}