feat(v0211): ftsHelpers + NoteRepository.search + reviewAggregate

- ftsHelpers: sanitizeFtsQuery (FTS5 special char escape) + computeCutoff (period → KST 자정)
- search: notes_fts MATCH + status filter + rank order + sanitize + 빈 query → []
- reviewAggregate: period 별 totalCount/recentNotes(50)/tagCounts(DESC)/dueProgress(passed/pending)

tests/unit/NoteRepository.reviewAggregate.test.ts

@@ -0,0 +1,72 @@
+import { describe, it, expect, beforeEach, afterEach } from 'vitest';
+import Database from 'better-sqlite3';
+import { runMigrations } from '../../src/main/db/migrations/index.js';
+import { NoteRepository } from '../../src/main/repository/NoteRepository.js';
+
+describe('NoteRepository.reviewAggregate', () => {
+  let db: Database.Database;
+  let repo: NoteRepository;
+
+  beforeEach(() => {
+    db = new Database(':memory:');
+    db.pragma('foreign_keys = ON');
+    runMigrations(db);
+    repo = new NoteRepository(db);
+  });
+
+  afterEach(() => { db.close(); });
+
+  it('daily — 오늘 KST 자정 이후 노트만 카운트', () => {
+    const now = new Date('2026-05-10T05:00:00Z'); // KST 14:00
+    db.prepare(`INSERT INTO notes (id, raw_text, ai_status, created_at, updated_at, status)
+                VALUES (?, ?, 'done', ?, ?, 'active')`).run('today', '오늘 메모', '2026-05-10T00:30:00Z', '2026-05-10T00:30:00Z');
+    db.prepare(`INSERT INTO notes (id, raw_text, ai_status, created_at, updated_at, status)
+                VALUES (?, ?, 'done', ?, ?, 'active')`).run('yesterday', '어제 메모', '2026-05-09T10:00:00Z', '2026-05-09T10:00:00Z');
+    const r = repo.reviewAggregate('daily', now);
+    expect(r.totalCount).toBe(1);
+    expect(r.recentNotes).toHaveLength(1);
+    expect(r.recentNotes[0]!.id).toBe('today');
+  });
+
+  it('weekly — 7일 전 KST 자정 이후', () => {
+    const now = new Date('2026-05-10T05:00:00Z');
+    db.prepare(`INSERT INTO notes (id, raw_text, ai_status, created_at, updated_at, status)
+                VALUES (?, ?, 'done', ?, ?, 'active')`).run('5dago', '5일 전', '2026-05-05T00:00:00Z', '2026-05-05T00:00:00Z');
+    db.prepare(`INSERT INTO notes (id, raw_text, ai_status, created_at, updated_at, status)
+                VALUES (?, ?, 'done', ?, ?, 'active')`).run('10dago', '10일 전', '2026-04-30T00:00:00Z', '2026-04-30T00:00:00Z');
+    const r = repo.reviewAggregate('weekly', now);
+    expect(r.totalCount).toBe(1);
+  });
+
+  it('trashed 제외', () => {
+    const now = new Date('2026-05-10T05:00:00Z');
+    const a = repo.create({ rawText: '활성' });
+    const b = repo.create({ rawText: '버린' });
+    repo.setStatus(b.id, 'trashed', null);
+    const r = repo.reviewAggregate('monthly', now);
+    expect(r.recentNotes.map((n) => n.id)).toContain(a.id);
+    expect(r.recentNotes.map((n) => n.id)).not.toContain(b.id);
+  });
+
+  it('tagCounts — period 안 노트의 태그만 DESC', () => {
+    const now = new Date('2026-05-10T05:00:00Z');
+    const a = repo.create({ rawText: 'a' });
+    const b = repo.create({ rawText: 'b' });
+    repo.updateAiResult(a.id, { title: 't', summary: 's', tags: ['x', 'y'], provider: 'p' });
+    repo.updateAiResult(b.id, { title: 't', summary: 's', tags: ['x'], provider: 'p' });
+    const r = repo.reviewAggregate('monthly', now);
+    expect(r.tagCounts[0]).toEqual({ tag: 'x', count: 2 });
+    expect(r.tagCounts[1]).toEqual({ tag: 'y', count: 1 });
+  });
+
+  it('dueProgress — passed / pending KST today 기준', () => {
+    const now = new Date('2026-05-10T05:00:00Z');
+    const a = repo.create({ rawText: 'a' });
+    const b = repo.create({ rawText: 'b' });
+    repo.create({ rawText: 'c' }); // due 없음 → 카운트 X
+    repo.setDueDate(a.id, '2026-05-01'); // passed
+    repo.setDueDate(b.id, '2026-05-15'); // pending
+    const r = repo.reviewAggregate('monthly', now);
+    expect(r.dueProgress).toEqual({ total: 2, passed: 1, pending: 1 });
+  });
+});