chore(release): v0.3.9 — AI 흐름 unblock UI + FTS5 escape

audit edge case 3건:
- pending 노트 "건너뛰기" 버튼 (cancelPending: pending → disabled + jobs DELETE)
- failed 노트 per-note "재시도" 버튼 (retryOneFailed: failed → pending + enqueue)
- FTS5 sanitize regex 확장 (backtick/dash/caret 추가)

동시 편집 race 는 EditableField guard 가 이미 처리 (수정 불필요).

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

package-lock.json

@@ -1,12 +1,12 @@
 {
   "name": "inkling",
-  "version": "0.3.8",
+  "version": "0.3.9",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "inkling",
-      "version": "0.3.8",
+      "version": "0.3.9",
       "dependencies": {
         "better-sqlite3": "12.9.0",
         "electron-log": "5.2.0",