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)

src/main/repository/NoteRepository.ts

@@ -2,6 +2,7 @@ import type Database from 'better-sqlite3';
 import { v7 as uuidv7, v4 as uuidv4 } from 'uuid';
 import type { AiStatus, Note, NoteMedia, NoteRevision, NoteStatus, NoteTag } from '@shared/types';
 import { kstTodayIso } from '../../shared/util/kstDate.js';
+import { sanitizeFtsQuery, computeCutoff, type ReviewPeriod } from './ftsHelpers.js';
 
 export interface CreateNoteInput {
   rawText: string;
@@ -600,6 +601,87 @@ export class NoteRepository {
     return rows.map((r) => this.hydrate(r));
   }
 
+  /**
+   * v0.2.11 Cut D — FTS5 검색. notes_fts MATCH + rank 정렬 + 기본 trashed 제외.
+   * 빈/공백 query → []. multi-token 은 implicit AND. FTS5 special chars 는 sanitize.
+   */
+  search(query: string, opts: { limit?: number; status?: NoteStatus } = {}): Note[] {
+    const sanitized = sanitizeFtsQuery(query);
+    if (sanitized.length === 0) return [];
+    const limit = Math.max(1, Math.min(200, opts.limit ?? 50));
+    const statusClause = opts.status ? `AND n.status = ?` : `AND n.status != 'trashed'`;
+    const sql = `
+      SELECT n.* FROM notes n
+      JOIN notes_fts f ON n.id = f.note_id
+      WHERE notes_fts MATCH ? ${statusClause}
+      ORDER BY rank
+      LIMIT ?
+    `;
+    const args: unknown[] = opts.status ? [sanitized, opts.status, limit] : [sanitized, limit];
+    const rows = this.db.prepare(sql).all(...args) as Record<string, unknown>[];
+    return rows.map((r) => this.hydrate(r));
+  }
+
+  /**
+   * v0.2.11 Cut D — 회고 view aggregate. period 별 KST 자정 cutoff 이후 노트
+   * (status != 'trashed') 의 totalCount / recentNotes(50) / tagCounts(DESC) /
+   * dueProgress(passed/pending KST today 기준).
+   */
+  reviewAggregate(period: ReviewPeriod, now: Date = new Date()): {
+    totalCount: number;
+    recentNotes: Note[];
+    tagCounts: Array<{ tag: string; count: number }>;
+    dueProgress: { total: number; passed: number; pending: number };
+  } {
+    const cutoff = computeCutoff(period, now);
+    const todayIso = kstTodayIso(now);
+
+    const totalCount = (this.db
+      .prepare(`SELECT COUNT(*) AS c FROM notes WHERE created_at >= ? AND status != 'trashed'`)
+      .get(cutoff) as { c: number }).c;
+
+    const recentRows = this.db
+      .prepare(
+        `SELECT * FROM notes
+          WHERE created_at >= ? AND status != 'trashed'
+          ORDER BY created_at DESC, id DESC LIMIT 50`
+      )
+      .all(cutoff) as Record<string, unknown>[];
+    const recentNotes = recentRows.map((r) => this.hydrate(r));
+
+    const tagCounts = this.db
+      .prepare(
+        `SELECT t.name AS tag, COUNT(*) AS count
+           FROM note_tags nt
+           JOIN notes n ON n.id = nt.note_id
+           JOIN tags t ON t.id = nt.tag_id
+          WHERE n.created_at >= ? AND n.status != 'trashed'
+          GROUP BY t.id
+          ORDER BY count DESC, t.name ASC`
+      )
+      .all(cutoff) as Array<{ tag: string; count: number }>;
+
+    const dueRow = this.db
+      .prepare(
+        `SELECT
+           COUNT(*) AS total,
+           SUM(CASE WHEN due_date < ? THEN 1 ELSE 0 END) AS passed,
+           SUM(CASE WHEN due_date >= ? THEN 1 ELSE 0 END) AS pending
+         FROM notes
+         WHERE created_at >= ?
+           AND status != 'trashed'
+           AND due_date IS NOT NULL`
+      )
+      .get(todayIso, todayIso, cutoff) as { total: number; passed: number | null; pending: number | null };
+    const dueProgress = {
+      total: dueRow.total,
+      passed: dueRow.passed ?? 0,
+      pending: dueRow.pending ?? 0
+    };
+
+    return { totalCount, recentNotes, tagCounts, dueProgress };
+  }
+
   /**
    * 휴지통에서 active 로 복원. setStatus('active') 로 status + deleted_at 동기화 +
    * v0.2.6 #10 round 1 fix 보존 (ai_status='failed' / 'pending' 시 pending_jobs 재투입).

src/main/repository/ftsHelpers.ts

@@ -0,0 +1,32 @@
+/**
+ * v0.2.11 Cut D — FTS5 검색 + 회고 view 의 순수 함수 헬퍼.
+ */
+
+const FTS5_SPECIAL_CHARS_RE = /["*():]/g;
+const WS_COLLAPSE_RE = /\s+/g;
+
+/**
+ * FTS5 MATCH 쿼리에 안전한 형태로 변환. " * ( ) : 제거 + 공백 정리.
+ * 다중 토큰은 그대로 두어 FTS5 implicit AND 활용.
+ */
+export function sanitizeFtsQuery(input: string): string {
+  return input.replace(FTS5_SPECIAL_CHARS_RE, ' ').replace(WS_COLLAPSE_RE, ' ').trim();
+}
+
+export type ReviewPeriod = 'daily' | 'weekly' | 'monthly';
+
+const KST_OFFSET_MS = 9 * 60 * 60 * 1000;
+
+/**
+ * 회고 cutoff = period 시작점의 KST 자정 (UTC ISO).
+ * daily = 오늘 0시, weekly = 7일 전 0시, monthly = 30일 전 0시.
+ */
+export function computeCutoff(period: ReviewPeriod, now: Date): string {
+  const kstNow = new Date(now.getTime() + KST_OFFSET_MS);
+  const y = kstNow.getUTCFullYear();
+  const m = kstNow.getUTCMonth();
+  const d = kstNow.getUTCDate();
+  const todayMidKstUtc = Date.UTC(y, m, d) - KST_OFFSET_MS;
+  const days = period === 'daily' ? 0 : period === 'weekly' ? 7 : 30;
+  return new Date(todayMidKstUtc - days * 24 * 60 * 60 * 1000).toISOString();
+}