feat(voice): add async selectable summaries

utils/types.ts

@@ -93,10 +93,30 @@ export interface FeedbackSession {
   failedSegmentCount: number
   needsGeneration: boolean
   lessons: VoiceLesson[]
+  latestSummaryRun: FeedbackSummaryRun | null
   createdAt: number
   updatedAt: number
 }
 
+export type FeedbackSummaryStatus = 'queued' | 'processing' | 'ready' | 'failed' | 'applied'
+
+export interface FeedbackSummaryRun {
+  id: string
+  feedbackSessionId: string
+  lessonIds: string[]
+  status: FeedbackSummaryStatus
+  content: string | null
+  method: string | null
+  model: string | null
+  promptVersion: string
+  characterCount: number | null
+  errorMessage: string | null
+  attempts: number
+  createdAt: number
+  completedAt: number | null
+  appliedAt: number | null
+}
+
 export interface VoiceLessonCreated {
   id: string
   sequence: number
@@ -114,5 +134,5 @@ export interface VoiceLessonFinished {
 
 export interface GeneratedFeedback {
   content: string
-  method: 'llm' | 'extractive'
+  method: 'llm' | 'llm_hierarchical' | 'extractive'
 }