Merge branch 'pr-1959' into dev

# Conflicts:
#	src/hooks/index.ts
#	src/plugin/event.ts
#	src/tools/delegate-task/sync-task.ts

src/tools/delegate-task/background-task.ts

@@ -5,6 +5,7 @@ import { getTimingConfig } from "./timing"
 import { storeToolMetadata } from "../../features/tool-metadata-store"
 import { formatDetailedError } from "./error-formatting"
 import { getSessionTools } from "../../shared/session-tools-store"
+import { SessionCategoryRegistry } from "../../shared/session-category-registry"
 
 export async function executeBackgroundTask(
   args: DelegateTaskArgs,
@@ -51,6 +52,10 @@ export async function executeBackgroundTask(
       sessionId = updated?.sessionID
     }
 
+    if (args.category && sessionId) {
+      SessionCategoryRegistry.register(sessionId, args.category)
+    }
+
     const unstableMeta = {
       title: args.description,
       metadata: {