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/dashboard/src/mission-routes.ts

@@ -879,7 +879,7 @@ export function createMissionRouter(store: TaskStore): Router {
       }
 
       try {
-        const slice = missionStore.activateSlice(sliceId);
+        const slice = await missionStore.activateSlice(sliceId);
         res.json(slice);
       } catch (err: any) {
         if (err.message?.includes("not found")) {