fix: Sentinel SSE 每次轮询都推送 (实时性) + isolation 默认 false + 文档

Sentinel:
- poll_interval 3s→2s, 每次轮询都推 SSE (不再等状态变化)
- 解决稳定状态下数据更新不实时问题

插件系统:
- 默认 isolation: false (避免插件 WebUI 不显示)
- example_plugin 显式设置 isolation: false
- 插件开发指南: settings 示例增加 isolation 说明

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

config/framework/base_config.yaml.example

@@ -11,7 +11,7 @@ plugins:
   auto_load: true
   hot_reload: true
   max_retry_count: 3
-  isolation: true
+  isolation: false
 # 自动启动脚本 — 框架启动时后台拉起
 auto_start_scripts:
   enabled: true

docs/SenSu 插件开发详细指南.md

@@ -156,6 +156,7 @@ license: "MIT"                       # 开源许可证
 settings:
   enabled: true                      # 是否启用
   auto_start: true                   # 是否自动启动
+      isolation: false                  # 进程隔离: true=独立子进程(无WebUI), false=框架内运行(支持WebUI/网络路由)
   log_level: "INFO"                  # 日志级别：DEBUG, INFO, WARNING, ERROR
   max_retry_count: 3                 # 失败重试次数
   health_check_interval: 60          # 健康检查间隔（秒）

plugins/example_plugin/config.yaml

@@ -9,6 +9,7 @@ settings:
   enabled: true
   auto_start: true
   log_level: "INFO"
+  isolation: false
 
 # 示例功能配置
 features:

plugins/sentinel/__init__.py

@@ -175,23 +175,18 @@ class Plugin(PluginWebMixin):
     async def _poll_loop(self, interval: int):
         while self._running:
             nodes = self._get_nodes()
-            changed = False
             for node in nodes:
                 if not node.get("enabled", True):
                     continue
-                prev = _NODE_CACHE.get(node.get("id", ""), {})
                 online, sys_info, err = await self._fetch_system(node)
-                new_status = {
+                _NODE_CACHE[node.get("id", "")] = {
                     "online": online,
                     "system": sys_info or {},
                     "last_seen": time.time(),
                     "error": err if not online else "",
                 }
-                if (prev.get("online") != online
-                        or abs(prev.get("last_seen", 0) - new_status["last_seen"]) > 5):
-                    changed = True
-                _NODE_CACHE[node.get("id", "")] = new_status
-            if changed:
+            # 每次轮询都推送 SSE (确保实时性)
+            if nodes:
                 await self.push_sse_event("nodes_update", {"nodes": self._build_cache_list()})
             await asyncio.sleep(interval)
 

plugins/sentinel/config.yaml

@@ -11,6 +11,6 @@ nodes:
 settings:
   auto_start: true
   isolation: false
-  poll_interval: 3
+  poll_interval: 2
   request_timeout: 5
 version: 1.0.0

services/init_service.py

@@ -228,7 +228,7 @@ class InitService:
                 'auto_load': True,
                 'hot_reload': True,
                 'max_retry_count': 3,
-                'isolation': True,  # 生产默认进程隔离，插件崩溃不影响框架
+                'isolation': False,  # 默认不隔离 (需要 Web 页面的插件必须非隔离)
             },
             'auto_start_scripts': {
                 'enabled': True,