chore: release v0.4.1 — CI improvements & cleanup

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

app.json

@@ -2,7 +2,7 @@
   "expo": {
     "name": "OpenCode",
     "slug": "opencode-mobile",
-    "version": "0.4.0",
+    "version": "0.4.1",
     "orientation": "portrait",
     "scheme": "opencode",
     "userInterfaceStyle": "automatic",
@@ -34,7 +34,7 @@
     },
     "android": {
       "package": "ai.opencode.mobile",
-      "versionCode": 3,
+      "versionCode": 4,
       "usesCleartextTraffic": true,
       "adaptiveIcon": {
         "foregroundImage": "./assets/adaptive-icon.png",