M0：灵台 Kernel 骨架（事件溯源/命台席位/瀑布总线/插件注册）与神识客户端边界，新增 POST /runs 占位闭环与测试，Alembic 基线合并为单一起点

backend/app/services/event_bus.py

@@ -14,7 +14,15 @@ from collections import defaultdict
 
 from app.schemas.runtime import EventResponse
 
-_TERMINAL_EVENT_TYPES = {"run.completed", "run.failed", "run.cancelled"}
+# 终态事件：新旧两套运行时共用本总线转发 SSE；Kernel 契约（run.finished/run.interrupted）
+# 与旧运行时（run.completed/run.failed）的终态都在此登记
+_TERMINAL_EVENT_TYPES = {
+    "run.completed",
+    "run.failed",
+    "run.cancelled",
+    "run.finished",
+    "run.interrupted",
+}
 
 
 class RunEventBus: