Add Android APK fleet nodes with Crucible UI integration and tests.

APK wrapper registers platform=android via AETHERFORGE_PLATFORM; fleet UI shows robot icons, Android Access Depth probes, and a shortened mining onion timeline.

android/smoke-gradle.sh

@@ -0,0 +1,37 @@
+#!/usr/bin/env bash
+# Smoke-check that the Android Gradle project is structurally valid.
+set -euo pipefail
+
+ROOT="$(cd "$(dirname "$0")" && pwd)"
+APP="$ROOT/agent-app"
+
+required=(
+  "$APP/build.gradle.kts"
+  "$APP/settings.gradle.kts"
+  "$APP/src/main/AndroidManifest.xml"
+  "$APP/src/main/java/com/aetherforge/agent/MainActivity.kt"
+  "$APP/src/main/java/com/aetherforge/agent/AgentService.kt"
+  "$APP/src/main/java/com/aetherforge/agent/BootReceiver.kt"
+  "$APP/src/main/assets/config.json"
+)
+
+for f in "${required[@]}"; do
+  if [[ ! -f "$f" ]]; then
+    echo "missing required file: $f" >&2
+    exit 1
+  fi
+done
+
+grep -q 'FOREGROUND_SERVICE' "$APP/src/main/AndroidManifest.xml"
+grep -q 'RECEIVE_BOOT_COMPLETED' "$APP/src/main/AndroidManifest.xml"
+grep -q 'AgentService' "$APP/src/main/AndroidManifest.xml"
+
+if [[ -x "$APP/gradlew" ]]; then
+  (cd "$APP" && ./gradlew help -q)
+elif command -v gradle >/dev/null 2>&1; then
+  (cd "$APP" && gradle help -q)
+else
+  echo "gradle not installed — structural checks only (PASS)"
+fi
+
+echo "android gradle smoke: OK"