feat(flow): 实时全链路流程可视化 P1——trace→graph_update→前端全链路流程页(design/19)

后端: trace/graph.go(RunGraph 图构建器,kind/status 映射,父子优先连线,脱敏白名单+截断);
       loop/flow.go(FlowPublisher 按会话增量发布 ws.graph_update,仅主人web会话); loop span
       start/finish 折入图; run.go StartRound/EndRound; wire.go 组装+注入.
前端: Flow.tsx(全链路流程页:FlowGraphView+会话/节点/开始/耗时卡片+状态计数+节点点开日志);
       FlowGraph 组件加 onNodeClick; types/wsParse 扩展; router/sections/AdminApp 注册 flow;
       api-client.md §3.5 graph_update 契约.
验证: 后端 build/vet/test 全绿+flow_test.go 集成(span→graph→ws.graph_update主干); 前端 build 绿.
红线: 单二进制零新依赖; 工具参数/结果脱敏; 仅主人web会话; 身份靠actor元数据; 只读不虚构.
P2(并行子代理分支/泳道/节点实时日志)后置.

internal/runtime/loop/loop.go

@@ -90,6 +90,7 @@ type Loop struct {
 	extractor       memory.Extractor
 	checkpoint      checkpointStore
 	tracer          *trace.Tracer
+	flow            *FlowPublisher
 	guards          *guardrail.Pipeline
 	personaID       string
 	timeLocation    *time.Location
@@ -141,6 +142,7 @@ func New(opts Options) *Loop {
 		extractor:        opts.Extractor,
 		checkpoint:       opts.Checkpoint,
 		tracer:           opts.Tracer,
+		flow:             opts.Flow,
 		guards:           opts.Guards,
 		personaID:        opts.PersonaID,
 		timeLocation:     timeLocation,