fix(android): ensure SDK is set up before gradle build

When we removed android.sh build, we lost the automatic SDK setup that
was at the top of android.sh. Now gradle is called directly without
the environment being initialized, causing 'SDK location not found' errors.

Added explicit SDK setup check before gradle build in test suite:
- Source ANDROID_SCRIPTS_DIR/init/setup.sh if ANDROID_SDK_ROOT not set
- Matches the auto-setup logic that was in android.sh

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

Author: abueide

examples/android/tests/test-suite.yaml

@@ -12,7 +12,15 @@ is_strict: true
 processes:
   # Phase 1: Build - runs first (no dependency)
   build-app:
-    command: "gradle assembleDebug"
+    command: |
+      set -e
+      # Ensure Android SDK is set up (needed when calling gradle directly)
+      if [ -z "${ANDROID_SDK_ROOT:-}" ] && [ -n "${ANDROID_SCRIPTS_DIR:-}" ]; then
+        if [ -f "${ANDROID_SCRIPTS_DIR}/init/setup.sh" ]; then
+          . "${ANDROID_SCRIPTS_DIR}/init/setup.sh"
+        fi
+      fi
+      gradle assembleDebug
     availability:
       restart: "no"