Add Abrha as a Maven Central fallback mirror (Myket stays primary)

- Myket (root) proxies Central + Google/AGP; Abrha
  (mirror.abrha.net/repository/maven/) is Central-only → used as fallback
- build.gradle + gradle-mirror.init template list both; APK rebuilds clean

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

android/build.gradle

@@ -4,6 +4,7 @@ buildscript {
     
     repositories {
         maven { url 'https://maven.myket.ir' }
+        maven { url 'https://mirror.abrha.net/repository/maven/' }
         google()
         mavenCentral()
     }
@@ -21,6 +22,7 @@ apply from: "variables.gradle"
 allprojects {
     repositories {
         maven { url 'https://maven.myket.ir' }
+        maven { url 'https://mirror.abrha.net/repository/maven/' }
         google()
         mavenCentral()
     }

android/gradle-mirror.init.gradle.example

@@ -1,27 +1,22 @@
-// Build APK behind Iran's network using the Myket maven mirror.
+// Build APK behind Iran's network. Myket serves Maven Central + Google/AGP at
-//
+// its root; Abrha is a Maven Central fallback.
-//   copy to:  android/gradle-mirror.init.gradle   (git-ignored)
+def MIRRORS = [
-//   build:    java -classpath gradle\wrapper\gradle-wrapper.jar \
+  "https://maven.myket.ir",                    // Central + Google (AGP)
-//               org.gradle.wrapper.GradleWrapperMain assembleDebug \
+  "https://mirror.abrha.net/repository/maven/", // Central fallback
-//               --init-script gradle-mirror.init.gradle --no-daemon
+]
-//
-// NOTE: the mirror serves the maven2 layout at the ROOT (no /maven2 suffix).
-def MIRROR = "https://maven.myket.ir"
 
 settingsEvaluated { settings ->
-  settings.pluginManagement.repositories { maven { url MIRROR } }
+  settings.pluginManagement.repositories { MIRRORS.each { m -> maven { url m } } }
   try {
-    settings.dependencyResolutionManagement.repositories { maven { url MIRROR } }
+    settings.dependencyResolutionManagement.repositories { MIRRORS.each { m -> maven { url m } } }
   } catch (ignored) { }
 }
 
 allprojects {
-  buildscript { repositories { maven { url MIRROR } } }
+  buildscript { repositories { MIRRORS.each { m -> maven { url m } } } }
-  repositories { maven { url MIRROR } }
+  repositories { MIRRORS.each { m -> maven { url m } } }
 
-  // Environment workarounds (only needed when the exact SDK build-tools / JDK
+  // Env workarounds: build-tools 35 / JDK 21 aren't present here.
-  // that Capacitor 8 expects aren't present — e.g. JDK 17 instead of 21, and
-  // build-tools 36 instead of 35). Remove on a CI with JDK 21 + build-tools 35.
   afterEvaluate { p ->
     if (p.plugins.hasPlugin('com.android.application') || p.plugins.hasPlugin('com.android.library')) {
       p.android {