incorporates and implements mobile build service functionality.

docker-compose.yml

@@ -31,8 +31,6 @@ services:
       KMTN_ADMIN_USERNAME : "admin"
       KMTN_ADMIN_PASSWORD : "123"
       KMTN_STATIC_UPSTREAM_URL: http://frontend:80
-    ports:
-      - "8000:8000"
     volumes:
       - pgsocket:/var/run/postgresql
       - logs:/logs
@@ -55,7 +53,27 @@ services:
     depends_on:
       - api
 
+  # Flutter build container — runs alongside the api/frontend services.
+  # The api container SSHes directly into this container over the Docker network.
+  # Forced to linux/amd64 because Android SDK CLI tools are only published
+  # for x86_64. On Apple Silicon hosts, Docker runs via Rosetta emulation.
+  build:
+    build:
+      context: ./build
+      dockerfile: Dockerfile
+    platform: linux/amd64
+    restart: unless-stopped
+    mem_limit: 16g
+    mem_reservation: 8g
+    expose:
+      - "22"
+    volumes:
+      - flutter-cache:/home/vscode/.pub-cache
+      - android-licenses:/opt/android-sdk/licenses
+
 volumes:
   pgdata:
   pgsocket:
   logs:
+  flutter-cache:
+  android-licenses: