feat(stack): 合并 docker-dev-sync 到 docker-dev 配置，统一 Dockerfile

source/stack/docker-dev/docker-compose.yaml

@@ -52,3 +52,24 @@ services:
         depends_on:
             mysql:
                 condition: service_healthy
+
+    # Sync profile: Windows I/O optimization via rsync host->container
+    # Enable with: COMPOSE_PROFILES=sync docker compose up -d
+    # Note: ulthon_admin and ulthon_admin_sync both bind port 8000, do not run together.
+    ulthon_admin_sync:
+        profiles: ["sync"]
+        build:
+            context: ../../..
+            dockerfile: source/stack/docker-dev/Dockerfile
+        restart: unless-stopped
+        ports:
+            - "8000:8000"
+        volumes:
+            - ../../..:/var/www/source
+        environment:
+            - SYNC_INTERVAL=${SYNC_INTERVAL:-3}
+        extra_hosts:
+            - "host.docker.internal:host-gateway"
+        depends_on:
+            mysql:
+                condition: service_healthy