feat: add AI-powered 1Panel app builder skill

- Add skill configuration for generating 1Panel app configs via AI
- Include templates for data.yml and docker-compose.yml
- Add utility scripts for app generation, icon download, and validation
- Provide reference examples and usage documentation
- Update .gitignore to exclude .trae directory
- Update README.md with skill usage instructions

skills/templates/docker-compose.yml.tpl

@@ -0,0 +1,20 @@
+services:
+  ${SERVICE_NAME}:
+    container_name: \${CONTAINER_NAME}
+    restart: always
+    networks:
+      - 1panel-network
+    ports:
+      - "\${PANEL_APP_PORT_HTTP}:${PORT}"
+    volumes:
+      - ./data/data:/app/data
+    environment:
+      - PUID=0
+      - PGID=0
+      - UMASK=022
+    image: ${IMAGE}:${TAG}
+    labels:
+      createdBy: "Apps"
+networks:
+  1panel-network:
+    external: true