v0.2.2 dogfood 7항목 (#7 telemetry 신설 + #1~#6) 단일 cut 로드맵.
데이터 안전 우선 (C 채택), schema migration v3 3컬럼 한 묶음 (B),
trash↔backup/export B 정책, #6 = 1 spike 흡수.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

@@ -18,0 +22,4 @@
+  if (msg.includes('econnrefused') || msg.includes('enotfound') || msg.includes('fetch failed') || msg.includes('econnreset') || msg.includes('unreachable')) {
+    return 'unreachable';
+  }
+  if (msg.includes('timeout') || msg.includes('timedout') || msg.includes('aborted')) {

@@ -95,6 +118,7 @@ export class AiWorker {
   private async processJob(job: Job): Promise<void> {
     const max = this.backoffsMs.length;
     for (let attempt = job.attempts; attempt < max; attempt++) {
+      const startMs = Date.now();

@@ -124,0 +151,4 @@
+            payload: {
+              noteId: job.noteId,
+              durationMs: Date.now() - startMs,
+              attempts: attempt

@@ -0,0 +57,4 @@
+  async emit(input: EmitInput): Promise<void> {
+    const ts = this.now().toISOString();
+    const event = validateEvent({ ts, kind: input.kind, payload: input.payload });
+    const filePath = join(this.dir, `events-${todayKstIso(this.now())}.jsonl`);

@@ -0,0 +79,4 @@
+    const cutoffIso = todayKstIso(new Date(cutoffMs));
+    const fileNames = entries
+      .filter((n) => /^events-\d{4}-\d{2}-\d{2}\.jsonl$/.test(n))
+      .filter((n) => n.slice(7, 17) >= cutoffIso)

@@ -0,0 +20,4 @@
+  attempts: z.number().int().nonnegative()
+}).strict();
+
+export const TelemetryEventSchema = z.discriminatedUnion('kind', [

@@ -25,6 +26,7 @@ function buildMenu() {
   items.push({ label: '내보내기...', click: _runExport });
   items.push({ label: '백업에서 복원...', click: _runImport });
   items.push({ label: '지금 동기화', click: _runSync });
+  items.push({ label: '사용 로그 내보내기...', click: _runExportTelemetry });

@@ -0,0 +57,4 @@
+    expect(readdirSync(dir).filter((f) => f.startsWith('events-'))).toEqual([]);
+  });
+
+  it('emit is silent (does not throw) when fs write fails — invariant: telemetry never breaks app', async () => {

@@ -0,0 +55,4 @@
+    expect(r.md).toContain('평균 ai_succeeded durationMs: 2000');
+  });
+
+  it('buckets near-midnight UTC events on the correct KST day (regression: not naive UTC)', () => {