refactor: commit package rename for core build files

The earlier rename commit did not persist the package-identity edits for
app.json, build.gradle, fastlane, the publish workflow, and the Kotlin
package declarations (they were reverted in the working tree after staging).
HEAD therefore still built ai.opencode.mobile. This commits the real
cc.agentlabs.opencode identity so CI builds the rebranded package.

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

android/app/src/main/java/cc/agentlabs/opencode/MainActivity.kt

@@ -1,4 +1,4 @@
-package ai.opencode.mobile
+package cc.agentlabs.opencode
 
 import android.os.Build
 import android.os.Bundle

android/app/src/main/java/cc/agentlabs/opencode/MainApplication.kt

@@ -1,4 +1,4 @@
-package ai.opencode.mobile
+package cc.agentlabs.opencode
 
 import android.app.Application
 import android.content.res.Configuration