fix: Update ports to avoid conflicts with existing Docker projects

- Change Gitea port from 3000 to 3001
- Change API port from 8080 to 8082
- Change Nginx port from 80 to 8083
- Add docker-compose.override.yml for local development
- Add deployment guide for existing servers

server/package.json

@@ -0,0 +1,38 @@
+{
+  "name": "nanaxe-api-server",
+  "version": "1.0.0",
+  "description": "API server for Nanaxe CRM mindmap synchronization - FastPanel compatible",
+  "main": "api/src/index.js",
+  "scripts": {
+    "start": "node api/src/index.js",
+    "dev": "nodemon api/src/index.js",
+    "pm2:start": "pm2 start ecosystem.config.js",
+    "pm2:stop": "pm2 stop ecosystem.config.js",
+    "pm2:restart": "pm2 restart ecosystem.config.js",
+    "pm2:logs": "pm2 logs nanaxe-api",
+    "install:deps": "npm ci --production"
+  },
+  "dependencies": {
+    "express": "^4.18.2",
+    "cors": "^2.8.5",
+    "helmet": "^7.1.0",
+    "morgan": "^1.10.0",
+    "jsonwebtoken": "^9.0.2",
+    "bcryptjs": "^2.4.3",
+    "axios": "^1.6.2",
+    "simple-git": "^3.21.0",
+    "fs-extra": "^11.2.0",
+    "uuid": "^9.0.1",
+    "dotenv": "^16.3.1",
+    "express-rate-limit": "^7.1.5",
+    "multer": "^1.4.5-lts.1",
+    "yaml": "^2.3.4",
+    "sqlite3": "^5.1.6"
+  },
+  "devDependencies": {
+    "nodemon": "^3.0.2"
+  },
+  "engines": {
+    "node": ">=18.0.0"
+  }
+}