wring error message when .env not configed

src/index.ts

@@ -1017,7 +1017,7 @@ class AppwriteMCPServer {
       if (!this.config || !this.databases) {
         throw new McpError(
           ErrorCode.InternalError,
-          "Appwrite not configured. Please check your appwrite-config.json file."
+          "Appwrite not configured. Please set environment variables: APPWRITE_PROJECT_ID, APPWRITE_API_ENDPOINT, and APPWRITE_API_KEY. For Claude Code CLI, create a .env file in your working directory. For Cursor IDE, add them to your MCP server configuration in settings.json."
         );
       }