Fix regex panic in task completion (v3.3.1)

- Replace unsupported lookahead regex with manual string replacement
- Fix 502 error when completing tasks
- Update version to 3.3.1

play-life-web/package.json

@@ -1,6 +1,6 @@
 {
   "name": "play-life-web",
-  "version": "3.3.0",
+  "version": "3.3.1",
   "type": "module",
   "scripts": {
     "dev": "vite",