chore(vscode): add iOS release ipa build task

.vscode/tasks.json

@@ -26,6 +26,19 @@
       ],
       "group": "build",
       "problemMatcher": []
+    },
+    {
+      "label": "Flutter Build iOS IPA (Release)",
+      "type": "shell",
+      "command": "flutter",
+      "args": [
+        "build",
+        "ipa",
+        "--release",
+        "--dart-define-from-file=.env/flutter_defines.json"
+      ],
+      "group": "build",
+      "problemMatcher": []
     }
   ]
 }