feat: revamp web hub — global connection status, array config editor, log streaming

- Global connection badge in app header (persistent dashboard SSE via ConnectionProvider)
- LogProvider keeps log data and SSE stream alive across page switches (no reload spinner)
- Config drawer: password reveal toggle, array-type row editor for list fields
- Plugin management: optimistic updates, race-free loading, reset all group overrides
- Logs: load-earlier pagination; backend tail-read optimization (before/end offsets)
- web_auth: Web password changes persist (sync_admin seeding only when .env has explicit key)
- Dashboard: collect in thread pool + 1s result cache
- ErrorBoundary + local Suspense: plugin chunk loading stays inside content area
- UI polish: table row hover, mobile header/breadcrumb fixes, wider config drawer
- config_standard: array type inference for list fields; array env skip
- random_jm_code / steam_info: array schema migration; README web frontend note

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

README.md

@@ -92,7 +92,7 @@ HeXi/
 │   ├── data/         # 运行数据(不入库)
 │   ├── config/       # 业务配置(不入库)
 │   ├── resource/     # 全局静态资源(fonts/ 字体、menu_config 等)
-│   ├── web/          # 统一 Web 前端(Vue 3)
+│   ├── web/          # 统一 Web 前端(React + Vite,构建产物 dist/ 供 /hub 挂载)
 │   ├── logs/         # 日志(不入库)
 │   └── web_*.py      # Web 管理相关(鉴权、插件注册)
 ├── docs/             # 插件开发标准文档
@@ -118,9 +118,9 @@ poetry run pyright         # 类型检查
 
 新增插件请参考:
 
-- [插件结构标准](docs/plugin-structure-standard.md)
-- [插件配置标准](docs/plugin-config-standard.md)
-- `plugin_template/` 脚手架模板
+- [插件结构标准](dev/docs/plugin-structure-standard.md)
+- [插件配置标准](dev/docs/plugin-config-standard.md)
+- `dev/plugin_template/` 脚手架模板
 
 ## 许可