iOS: source.json for 1.0.13

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

ios/source.json

@@ -15,6 +15,15 @@
       "tintColor": "#FA2D48",
       "category": "entertainment",
       "versions": [
+        {
+          "version": "1.0.13",
+          "buildVersion": "14",
+          "date": "2026-10-20T13:42:31-07:00",
+          "localizedDescription": "- Export and import of stem playlists and sound settings (Settings > Backup)\n- Mixer: one-line faders, every stem fits without scrolling\n- Wide and landscape now-playing layout for iPhone Duo\n\nUnsigned IPA: re-sign with Sideloadly or AltStore.",
+          "downloadURL": "https://git.iamchrisama.com/cdnutter/stemify/releases/download/ios-v1.0.13/stemify-1.0.13.ipa",
+          "size": 1559179,
+          "minOSVersion": "17.0"
+        },
         {
           "version": "1.0.12",
           "buildVersion": "13",