feat: ship v0.8.0 with writing logs and AI knowledge extraction

Deliver P5.2 writing day logs, cockpit heatmap, streak tracking, and chapter knowledge auto-extraction with merge review.

Co-authored-by: Cursor <cursoragent@cursor.com>

src/shared/electron-api.d.ts

@@ -42,7 +42,9 @@ import type {
   KnowledgeType,
   CockpitSummary,
   ChapterBridgeResult,
-  PublishStatus
+  PublishStatus,
+  WritingStats,
+  KnowledgeExtractionResult
 } from './types'
 
 export interface ElectronAPI {
@@ -349,6 +351,16 @@ export interface ElectronAPI {
       bookId: string,
       opts?: KnowledgeSuggestOptions
     ) => Promise<IpcResult<ScoredKnowledge[]>>
+    extractChapter: (
+      bookId: string,
+      chapterId: string
+    ) => Promise<IpcResult<KnowledgeExtractionResult>>
+    approveMerge: (bookId: string, pendingId: string) => Promise<IpcResult<KnowledgeEntry>>
+    saveMergeAsNew: (bookId: string, pendingId: string) => Promise<IpcResult<KnowledgeEntry>>
+    batchApproveHighConfidence: (bookId: string, threshold?: number) => Promise<IpcResult<number>>
+  }
+  writing: {
+    getStats: (bookId: string) => Promise<IpcResult<WritingStats>>
   }
   cockpit: {
     getSummary: (bookId: string, volumeId?: string) => Promise<IpcResult<CockpitSummary>>