refactor: 清理 registry 条目 — 移除运行时字段，规范静态数据

Apps（8 个）:
- 删除顶层 requirements（已在 install.requirements 中）
- 删除 installStatus、latestVersion（运行时/冗余字段）
- 将 configNeeded 移入 install.configNeeded
- 删除 install 内的 composePath/envTemplatePath

MCP（7 个）:
- 删除 protocol/status/origin/transport（由 sync 层按目录类型注入）

Services（5 个）:
- 删除 protocol/status/origin（由 sync 层注入）

原则：Registry 只存静态数据，运行时字段由客户端 sync 层注入默认值。

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

mcp/db-mcp/index.json

@@ -2,10 +2,6 @@
   "id": "db-mcp",
   "name": "Database MCP",
   "description": "PostgreSQL 数据库查询与管理，支持 SQL 执行和 Schema 浏览",
-  "protocol": "mcp",
-  "status": "offline",
-  "origin": "registry",
-  "transport": "stdio",
   "capabilities": [
     "sql_query",
     "schema_browse",

mcp/dify-mcp/index.json

@@ -2,12 +2,8 @@
   "id": "dify-mcp",
   "name": "Dify MCP Bridge",
   "description": "Dify 平台 Agent 工具集桥接，支持调用 Dify 内置工具和自定义工具",
-  "protocol": "mcp",
-  "status": "offline",
-  "origin": "app",
   "sourceAppId": "dify",
   "sourceAppName": "Dify",
-  "transport": "streamable-http",
   "capabilities": [
     "tool_invoke",
     "workflow_trigger",

mcp/fetch-mcp/index.json

@@ -2,10 +2,6 @@
   "id": "fetch-mcp",
   "name": "Fetch MCP",
   "description": "网页内容获取与转换，将网页转为 Markdown 供 LLM 使用",
-  "protocol": "mcp",
-  "status": "offline",
-  "origin": "registry",
-  "transport": "stdio",
   "capabilities": [
     "url_fetch",
     "html_to_markdown",

mcp/fs-mcp/index.json

@@ -2,10 +2,6 @@
   "id": "fs-mcp",
   "name": "Filesystem MCP",
   "description": "本地文件系统操作，支持读写、搜索、监控文件变化",
-  "protocol": "mcp",
-  "status": "offline",
-  "origin": "registry",
-  "transport": "stdio",
   "capabilities": [
     "file_read",
     "file_write",

mcp/github-mcp/index.json

@@ -2,10 +2,6 @@
   "id": "github-mcp",
   "name": "GitHub MCP",
   "description": "代码仓库操作，支持 PR、Issue、代码搜索和仓库管理",
-  "protocol": "mcp",
-  "status": "offline",
-  "origin": "registry",
-  "transport": "stdio",
   "capabilities": [
     "repo_read",
     "pr_manage",

mcp/memory-mcp/index.json

@@ -2,10 +2,6 @@
   "id": "memory-mcp",
   "name": "Memory MCP",
   "description": "基于知识图谱的持久化记忆服务，支持实体和关系的存取",
-  "protocol": "mcp",
-  "status": "offline",
-  "origin": "registry",
-  "transport": "stdio",
   "capabilities": [
     "entity_store",
     "relation_store",

mcp/playwright-mcp/index.json

@@ -2,10 +2,6 @@
   "id": "playwright-mcp",
   "name": "Playwright MCP",
   "description": "浏览器自动化 — 网页导航、截图、表单填写、DOM 操作、PDF 生成",
-  "protocol": "mcp",
-  "status": "offline",
-  "origin": "registry",
-  "transport": "stdio",
   "capabilities": [
     "page_navigate",
     "screenshot",