refactor(runtime): harden channel-registry cache invalidation and split outbound delivery flow

src/plugins/runtime.ts

@@ -5,6 +5,7 @@ const REGISTRY_STATE = Symbol.for("openclaw.pluginRegistryState");
 type RegistryState = {
   registry: PluginRegistry | null;
   key: string | null;
+  version: number;
 };
 
 const state: RegistryState = (() => {
@@ -15,6 +16,7 @@ const state: RegistryState = (() => {
     globalState[REGISTRY_STATE] = {
       registry: createEmptyPluginRegistry(),
       key: null,
+      version: 0,
     };
   }
   return globalState[REGISTRY_STATE];
@@ -23,6 +25,7 @@ const state: RegistryState = (() => {
 export function setActivePluginRegistry(registry: PluginRegistry, cacheKey?: string) {
   state.registry = registry;
   state.key = cacheKey ?? null;
+  state.version += 1;
 }
 
 export function getActivePluginRegistry(): PluginRegistry | null {
@@ -32,6 +35,7 @@ export function getActivePluginRegistry(): PluginRegistry | null {
 export function requireActivePluginRegistry(): PluginRegistry {
   if (!state.registry) {
     state.registry = createEmptyPluginRegistry();
+    state.version += 1;
   }
   return state.registry;
 }
@@ -39,3 +43,7 @@ export function requireActivePluginRegistry(): PluginRegistry {
 export function getActivePluginRegistryKey(): string | null {
   return state.key;
 }
+
+export function getActivePluginRegistryVersion(): number {
+  return state.version;
+}