feat(FN-972): auto-triage features when slice activated with autoAdvance

- When a slice is activated and has autoAdvance enabled, automatically triage all features in that slice
- Add auto-triage logic to mission-store activateSlice method
- Add comprehensive tests for auto-triage behavior covering edge cases
- Fix module import paths across mission-related files (mission.ts, extension.ts, mission-integration.test.ts, mission-routes.ts, scheduler.ts)

packages/cli/src/extension.ts

@@ -1446,7 +1446,7 @@ export default function kbExtension(pi: ExtensionAPI) {
         };
       }
 
-      const activated = missionStore.activateSlice(params.id);
+      const activated = await missionStore.activateSlice(params.id);
 
       return {
         content: [