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/renderer/components/knowledge/KnowledgeEditorDialog.tsx

@@ -29,8 +29,14 @@ export function KnowledgeEditorDialog({
   const entries = useKnowledgeStore((s) => s.entries)
   const create = useKnowledgeStore((s) => s.create)
   const update = useKnowledgeStore((s) => s.update)
+  const approveMerge = useKnowledgeStore((s) => s.approveMerge)
+  const saveMergeAsNew = useKnowledgeStore((s) => s.saveMergeAsNew)
 
   const existing = entryId ? entries.find((e) => e.id === entryId) : null
+  const mergeTarget = existing?.mergeTargetId
+    ? entries.find((e) => e.id === existing.mergeTargetId)
+    : undefined
+  const isMergeMode = Boolean(existing?.mergeTargetId && mergeTarget)
 
   const [type, setType] = useState<KnowledgeType>('fact')
   const [title, setTitle] = useState('')
@@ -179,6 +185,30 @@ export function KnowledgeEditorDialog({
           )}
         </div>
         <div className="modal-footer">
+          {isMergeMode && bookId && existing && (
+            <>
+              <button
+                type="button"
+                className="btn btn-primary"
+                data-testid="knowledge-approve-merge"
+                onClick={() => {
+                  void approveMerge(bookId, existing.id).then(onClose)
+                }}
+              >
+                {t('knowledge.approveMerge')}
+              </button>
+              <button
+                type="button"
+                className="btn"
+                data-testid="knowledge-save-as-new"
+                onClick={() => {
+                  void saveMergeAsNew(bookId, existing.id).then(onClose)
+                }}
+              >
+                {t('knowledge.saveAsNew')}
+              </button>
+            </>
+          )}
           <button type="button" className="btn" onClick={onClose}>
             {t('dialog.cancel')}
           </button>

src/renderer/components/knowledge/KnowledgePanel.tsx

@@ -2,6 +2,7 @@ import { useEffect, useState } from 'react'
 import { useTranslation } from 'react-i18next'
 import { useBookStore } from '@renderer/stores/useBookStore'
 import { useKnowledgeStore } from '@renderer/stores/useKnowledgeStore'
+import { useSettingsStore } from '@renderer/stores/useSettingsStore'
 import { ipcCall } from '@renderer/lib/ipc-client'
 import { NamingCheckModal } from '@renderer/components/ai/NamingCheckModal'
 import {
@@ -12,6 +13,8 @@ import {
 export function KnowledgePanel(): React.JSX.Element {
   const { t } = useTranslation()
   const bookId = useBookStore((s) => s.currentBookId)
+  const selectedChapterId = useBookStore((s) => s.selectedChapterId)
+  const extractThreshold = useSettingsStore((s) => s.knowledgeExtractConfidenceThreshold)
   const {
     entries,
     stats,
@@ -25,8 +28,11 @@ export function KnowledgePanel(): React.JSX.Element {
     approve,
     reject,
     deleteEntry,
-    batchApprove
+    batchApprove,
+    extractChapter,
+    batchApproveHighConfidence
   } = useKnowledgeStore()
+  const [extracting, setExtracting] = useState(false)
   const [namingOpen, setNamingOpen] = useState(false)
   const [selected, setSelected] = useState<Set<string>>(new Set())
   const [pendingCount, setPendingCount] = useState(0)
@@ -71,6 +77,30 @@ export function KnowledgePanel(): React.JSX.Element {
           >
             {t('naming.open')}
           </button>
+          {tab === 'pending' && bookId && (
+            <button
+              type="button"
+              className="btn"
+              data-testid="knowledge-batch-high-confidence"
+              onClick={() => void batchApproveHighConfidence(bookId, extractThreshold)}
+            >
+              {t('knowledge.batchHighConfidence')}
+            </button>
+          )}
+          {bookId && selectedChapterId && (
+            <button
+              type="button"
+              className="btn"
+              data-testid="knowledge-extract-current"
+              disabled={extracting}
+              onClick={() => {
+                setExtracting(true)
+                void extractChapter(bookId, selectedChapterId).finally(() => setExtracting(false))
+              }}
+            >
+              {extracting ? t('knowledge.extracting') : t('knowledge.extractFromCurrent')}
+            </button>
+          )}
         </div>
         <div className="knowledge-tabs">
           <button
@@ -134,10 +164,29 @@ export function KnowledgePanel(): React.JSX.Element {
                 />
               )}
               <div className="kb-item-main">
-                <div className="kb-item-title">{entry.title}</div>
+                <div className="kb-item-title">
+                  {entry.title}
+                  {entry.extractionConfidence != null && (
+                    <span className="kb-confidence-badge">
+                      {Math.round(entry.extractionConfidence * 100)}%
+                    </span>
+                  )}
+                </div>
                 <div className="kb-item-meta">
                   {t(`knowledge.type.${entry.type}`)} · {t(`knowledge.status.${entry.status}`)}
                 </div>
+                {entry.mergeTargetId && (
+                  <div
+                    className="kb-merge-hint"
+                    data-testid={`knowledge-merge-review-${entry.id}`}
+                  >
+                    {t('knowledge.mergeSuggest', {
+                      title:
+                        entries.find((e) => e.id === entry.mergeTargetId)?.title ??
+                        entry.mergeTargetId
+                    })}
+                  </div>
+                )}
                 {entry.content && <div className="kb-item-content">{entry.content}</div>}
               </div>
               <div className="kb-item-actions">