release: bump version 0.4.3 -> 0.4.4

Ships accumulated work incl session-scope fix (ee7082a) to F-Droid + Play
via v0.4.4 tag.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

android/app/build.gradle

@@ -95,7 +95,7 @@ android {
         minSdkVersion rootProject.ext.minSdkVersion
         targetSdkVersion rootProject.ext.targetSdkVersion
         versionCode 5
-        versionName "0.4.3"
+        versionName "0.4.4"
 
         buildConfigField "String", "REACT_NATIVE_RELEASE_LEVEL", "\"${findProperty('reactNativeReleaseLevel') ?: 'stable'}\""
     }

app.json

@@ -2,7 +2,7 @@
   "expo": {
     "name": "OpenCode",
     "slug": "opencode-mobile",
-    "version": "0.4.3",
+    "version": "0.4.4",
     "orientation": "portrait",
     "scheme": "opencode",
     "userInterfaceStyle": "automatic",