fix(e2e): make Android SDK versions match plugin defaults

Updated E2E example build.gradle files to read SDK versions from
environment variables (like mobile-devtools examples do) instead of
using hardcoded values.

Changes:
- Read ANDROID_COMPILE_SDK, ANDROID_TARGET_SDK, ANDROID_BUILD_TOOLS_VERSION from env
- Read ANDROID_NDK_VERSION from env (if set)
- Updated E2E-compat ANDROID_MAX_API from 33 to 35 to match plugin default
- Default to build-tools 35.0.0 to match react-native plugin

This fixes the error where Gradle tried to install API 33 but only
API 35 was available in the Nix store.

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

Author: abueide

examples/E2E-compat/android/build.gradle

@@ -2,16 +2,18 @@
 
 buildscript {
     ext {
-        // Default to the build-tools pinned in devbox; allow override via ANDROID_BUILD_TOOLS_VERSION.
-        // Keep in sync with nix/flake.nix when ANDROID_BUILD_TOOLS_VERSION is unset.
-        buildToolsVersion = System.getenv("ANDROID_BUILD_TOOLS_VERSION") ?: "30.0.3"
+        def compileSdkEnv = System.getenv("ANDROID_COMPILE_SDK") ?: System.getenv("ANDROID_MAX_API") ?: "33"
+        def targetSdkEnv = System.getenv("ANDROID_TARGET_SDK") ?: System.getenv("ANDROID_MAX_API") ?: "33"
+        buildToolsVersion = System.getenv("ANDROID_BUILD_TOOLS_VERSION") ?: "35.0.0"
         minSdkVersion = 21
-        compileSdkVersion = 33
-        targetSdkVersion = 33
+        compileSdkVersion = compileSdkEnv.toInteger()
+        targetSdkVersion = targetSdkEnv.toInteger()
         kotlinVersion="1.7.20"
 
-        // We use NDK 23 which has both M1 support and is the side-by-side NDK version from AGP.
-        ndkVersion = "23.1.7779620"
+        def ndkVersionEnv = System.getenv("ANDROID_NDK_VERSION")
+        if (ndkVersionEnv) {
+            ndkVersion = ndkVersionEnv
+        }
     }
     repositories {
         google()

examples/E2E-compat/devbox.json

@@ -14,7 +14,7 @@
     "IOS_APP_BUNDLE_ID": "com.analyticsreactnativeexample",
     "ANDROID_APP_ID": "com.analyticsreactnativeexample",
     "ANDROID_APP_APK": "android/app/build/outputs/apk/release/app-release.apk",
-    "ANDROID_MAX_API": "33",
+    "ANDROID_MAX_API": "35",
     "ANDROID_SDK_REQUIRED": "0"
   },
   "shell": {

examples/E2E-latest/android/build.gradle

@@ -2,16 +2,18 @@
 
 buildscript {
     ext {
-        // Default to the build-tools pinned in devbox; allow override via ANDROID_BUILD_TOOLS_VERSION.
-        // Keep in sync with nix/flake.nix when ANDROID_BUILD_TOOLS_VERSION is unset.
-        buildToolsVersion = System.getenv("ANDROID_BUILD_TOOLS_VERSION") ?: "30.0.3"
+        def compileSdkEnv = System.getenv("ANDROID_COMPILE_SDK") ?: System.getenv("ANDROID_MAX_API") ?: "35"
+        def targetSdkEnv = System.getenv("ANDROID_TARGET_SDK") ?: System.getenv("ANDROID_MAX_API") ?: "35"
+        buildToolsVersion = System.getenv("ANDROID_BUILD_TOOLS_VERSION") ?: "35.0.0"
         minSdkVersion = 21
-        compileSdkVersion = 33
-        targetSdkVersion = 33
+        compileSdkVersion = compileSdkEnv.toInteger()
+        targetSdkVersion = targetSdkEnv.toInteger()
         kotlinVersion="1.7.20"
 
-        // We use NDK 23 which has both M1 support and is the side-by-side NDK version from AGP.
-        ndkVersion = "23.1.7779620"
+        def ndkVersionEnv = System.getenv("ANDROID_NDK_VERSION")
+        if (ndkVersionEnv) {
+            ndkVersion = ndkVersionEnv
+        }
     }
     repositories {
         google()