feat: deliver P2 v0.2.0 with unified editor, search, and snapshots

Implement schema v2 migration, outline/setting/inspiration CRUD, unified TipTap editing, reference panel with mentions, FTS global search, chapter version history, writing landmarks, word frequency analysis, light theme contrast fixes, and full unit/E2E test coverage.

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

tests/main/bookmark.repo.test.ts

@@ -0,0 +1,44 @@
+import { describe, it, expect, beforeEach, afterEach } from 'vitest'
+import { DatabaseSync } from 'node:sqlite'
+import { migrate } from '../../src/main/db/migrate'
+import { BookmarkRepository } from '../../src/main/db/repositories/bookmark.repo'
+import { VolumeRepository } from '../../src/main/db/repositories/volume.repo'
+import { ChapterRepository } from '../../src/main/db/repositories/chapter.repo'
+import type { SqliteDb } from '../../src/main/db/types'
+
+describe('BookmarkRepository', () => {
+  let db: SqliteDb
+  let repo: BookmarkRepository
+  let chapterId: string
+
+  beforeEach(() => {
+    db = new DatabaseSync(':memory:')
+    migrate(db)
+    repo = new BookmarkRepository(db)
+    const vol = new VolumeRepository(db).create('卷一', 0)
+    chapterId = new ChapterRepository(db).create(vol.id, '第一章', 0).id
+  })
+
+  afterEach(() => {
+    db.close()
+  })
+
+  it('creates and lists bookmarks by chapter', () => {
+    repo.create(chapterId, 100, '待办：补充描写', 'todo')
+    expect(repo.listByChapter(chapterId)).toHaveLength(1)
+    expect(repo.listByChapter(chapterId)[0].label).toBe('待办：补充描写')
+  })
+
+  it('resolves bookmark', () => {
+    const bm = repo.create(chapterId, 50, '伏笔', 'foreshadow')
+    repo.resolve(bm.id, true)
+    expect(repo.get(bm.id)!.resolved).toBe(true)
+    expect(repo.list(undefined, false)).toHaveLength(0)
+  })
+
+  it('deletes bookmark', () => {
+    const bm = repo.create(chapterId, 0, '研究笔记', 'research')
+    repo.delete(bm.id)
+    expect(repo.get(bm.id)).toBeNull()
+  })
+})