feat: complete P0/P1/P2 — WebUI SPA, OpenClaw sidecar+simulator, healthcheck auto-sched+perf

P0: WebUI重构
- 完整 SPA 仪表盘 (7标签页), //go:embed dashboard.html
P1: OpenClaw兼容 (三通道: SKILL.md / sidecar / simulator)
- Node.js 模拟进程统一加载任意 OpenClaw 插件
- JSON-RPC 2.0 over stdio 协议, go:embed 内嵌
P2: Healthcheck 优化
- 定时自动执行 (startAutoCheck, 30min)
- healthcheck_perf 性能监控工具

其他: agentcli/cmd 插件, integration_test, status.go,
      test_deepseek 清理, 多项 bug 修复

internal/sdk/plugin.go

@@ -44,6 +44,7 @@ type StageContext struct {
 	Response        *string
 	Phase           Stage
 	Memory          []MemItem
+	NoMemory        bool
 	Extra           map[string]interface{}
 }
 
@@ -144,6 +145,13 @@ func (s *PluginSDK) InjectText(source, channel, text string) {
 	}
 }
 
+// InjectTextNoMemory 注入文本输入（不产生记忆）。适用于健康检查等无需记忆碎片的场景。
+func (s *PluginSDK) InjectTextNoMemory(source, channel, text string) {
+	if s.iom != nil {
+		s.iom.InjectTextNoMemoryTo(source, channel, text)
+	}
+}
+
 func (s *PluginSDK) InjectTextSync(source, channel, text string) *agentIO.OutputEvent {
 	if s.iom != nil {
 		return s.iom.InjectTextSyncTo(source, channel, text)
@@ -151,6 +159,14 @@ func (s *PluginSDK) InjectTextSync(source, channel, text string) *agentIO.Output
 	return nil
 }
 
+// InjectTextSyncNoMemory 注入文本输入（同步等待，不产生记忆）。
+func (s *PluginSDK) InjectTextSyncNoMemory(source, channel, text string) *agentIO.OutputEvent {
+	if s.iom != nil {
+		return s.iom.InjectTextSyncNoMemoryTo(source, channel, text)
+	}
+	return nil
+}
+
 func (s *PluginSDK) InjectInterruptText(source, channel, text string) {
 	if s.iom != nil {
 		s.iom.InjectInterruptText(source, channel, text)