feat: ship v0.9.0 with pomodoro, achievements, and injection history

Add pomodoro timer with goal notifications, writing streak milestones, and knowledge injection logging with UI previews across AI writing flows.

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

src/renderer/components/layout/EditorLayout.tsx

@@ -10,6 +10,7 @@ import { useReferenceStore } from '@renderer/stores/useReferenceStore'
 import { useSettingsStore } from '@renderer/stores/useSettingsStore'
 import { useCockpitStore } from '@renderer/stores/useCockpitStore'
 import { useWritingStatsStore } from '@renderer/stores/useWritingStatsStore'
+import { usePomodoroStore, formatPomodoroTime } from '@renderer/stores/usePomodoroStore'
 import { ipcCall } from '@renderer/lib/ipc-client'
 import { TipTapEditor, flushEditorSave } from '@renderer/components/editor/TipTapEditor'
 import { insertLandmarkInEditor } from '@renderer/lib/editor-commands'
@@ -94,6 +95,15 @@ export function EditorLayout(): React.JSX.Element {
   const dailyWordGoal = useSettingsStore((s) => s.dailyWordGoal)
   const writingStats = useWritingStatsStore((s) => s.stats)
   const refreshWritingStats = useWritingStatsStore((s) => s.refresh)
+  const pomodoroRunning = usePomodoroStore((s) => s.running)
+  const pomodoroPaused = usePomodoroStore((s) => s.paused)
+  const pomodoroRemaining = usePomodoroStore((s) => s.remainingSec)
+  const pomodoroBookId = usePomodoroStore((s) => s.bookId)
+  const pomodoroInit = usePomodoroStore((s) => s.init)
+  const pomodoroStart = usePomodoroStore((s) => s.start)
+  const pomodoroPause = usePomodoroStore((s) => s.pause)
+  const pomodoroResume = usePomodoroStore((s) => s.resume)
+  const pomodoroCancel = usePomodoroStore((s) => s.cancel)
   const bridgeChapterId = useCockpitStore((s) => s.bridgeChapterId)
   const clearBridgeChapter = useCockpitStore((s) => s.clearBridgeChapter)
   const updateChapterLocal = useBookStore((s) => s.updateChapterLocal)
@@ -111,11 +121,21 @@ export function EditorLayout(): React.JSX.Element {
   const isChapterTarget = target?.kind === 'chapter'
   const chapterId = target?.kind === 'chapter' ? target.id : selectedChapterId
 
+  useEffect(() => {
+    void pomodoroInit()
+  }, [pomodoroInit])
+
+  useEffect(() => {
+    if (!pomodoroRunning || !pomodoroBookId || !currentBookId) return
+    if (pomodoroBookId === currentBookId) return
+    void pomodoroCancel()
+  }, [currentBookId, pomodoroRunning, pomodoroBookId, pomodoroCancel])
+
   useEffect(() => {
     if (selectedChapterId && (!target || target.kind === 'chapter')) {
       setTarget({ kind: 'chapter', id: selectedChapterId })
     }
-  }, [selectedChapterId, setTarget])
+  }, [selectedChapterId, setTarget, target])
 
   useEffect(() => {
     if (!currentBookId || target?.kind !== 'chapter') return
@@ -426,6 +446,39 @@ export function EditorLayout(): React.JSX.Element {
               bookId={currentBookId}
             />
             <div id="editor-statusbar">
+              <div className="pomodoro-control" data-testid="pomodoro-control">
+                {!pomodoroRunning ? (
+                  <button
+                    type="button"
+                    className="pomodoro-btn"
+                    title={t('pomodoro.start')}
+                    disabled={!currentBookId}
+                    onClick={() => currentBookId && void pomodoroStart(currentBookId)}
+                  >
+                    ▶
+                  </button>
+                ) : (
+                  <>
+                    <button
+                      type="button"
+                      className="pomodoro-btn"
+                      title={pomodoroPaused ? t('pomodoro.resume') : t('pomodoro.pause')}
+                      onClick={() => void (pomodoroPaused ? pomodoroResume() : pomodoroPause())}
+                    >
+                      {pomodoroPaused ? '▶' : '⏸'}
+                    </button>
+                    <span className="pomodoro-time">{formatPomodoroTime(pomodoroRemaining)}</span>
+                    <button
+                      type="button"
+                      className="pomodoro-btn"
+                      title={t('pomodoro.cancel')}
+                      onClick={() => void pomodoroCancel()}
+                    >
+                      ✕
+                    </button>
+                  </>
+                )}
+              </div>
               <span>{saveStatus}{lastSaved ? ` · ${lastSaved.toLocaleTimeString()}` : ''}</span>
               {dailyWordGoal > 0 && writingStats && (
                 <span