Set AETHERFORGE env vars in APK wrapper before agent spawn.

Java AgentProcess passes SERVER_URL, WORKER_NUMBER, PLATFORM=android, and Wi-Fi/battery/foreground-service probes to the embedded Go worker.

android/agent-app/src/main/assets/config.json

@@ -1,11 +1,4 @@
 {
-  "build_id": "android-dev",
-  "fleet_secret_set": false,
-  "mining": {
-    "enabled": false,
-    "mode": "idle",
-    "note": "CPU mining disabled by default; enable via server policy or re-forge."
-  },
-  "server_url": "http://test:8989",
-  "worker_name": "test-node"
-}
+  "server_url": "http://192.168.1.10:8989",
+  "worker_name": "tablet-1"
+}