Refactor: Initial code split into includes directory for modularity

- Reorganized backend logic by moving API, authentication, Docker, status, and WebSocket handling into separate modules (api.js, auth.js, docker.js, status.js, websocket.js) within ./includes/
- Converted codebase to ES modules with import/export syntax for modern JavaScript
- Updated index.js to serve as main entry point, importing from ./includes/
- Reduced code duplication and improved readability with modularized functions
- Ensured full functionality preservation, including Docker stats and WebSocket communication
- Updated README to reflect new folder structure and ES module setup

includes/api.js

@@ -0,0 +1,21 @@
+import fetch from 'node-fetch';
+
+export async function apiRequest(endpoint, apiKey, method = 'GET', body = null) {
+  const headers = {
+    'Accept': 'application/json',
+    'Content-Type': 'application/json',
+    'x-my-mc-auth': apiKey
+  };
+  try {
+    const response = await fetch(`${process.env.API_URL}${endpoint}`, {
+      method,
+      headers,
+      body: body ? JSON.stringify(body) : null
+    });
+    const data = await response.json();
+    if (!response.ok) return { error: data.message || `HTTP ${response.status}` };
+    return data;
+  } catch (error) {
+    return { error: `Network error: ${error.message}` };
+  }
+}