update to node site

website/scripts/GlobalVariables.js

@@ -0,0 +1,62 @@
+/**
+ * Simple global variable registry for sharing values between nodes.
+ */
+export class GlobalVariables {
+    /** @type {Map<string, any>} */
+    static #variables = new Map();
+
+    /**
+     * Sets a global variable.
+     *
+     * @param {string} name Variable name
+     * @param {any} value Variable value
+     */
+    static set(name, value) {
+        this.#variables.set(name, value);
+    }
+
+    /**
+     * Gets a global variable.
+     *
+     * @param {string} name Variable name
+     * @returns {any} Variable value or undefined
+     */
+    static get(name) {
+        return this.#variables.get(name);
+    }
+
+    /**
+     * Checks if a variable exists.
+     *
+     * @param {string} name Variable name
+     * @returns {boolean}
+     */
+    static has(name) {
+        return this.#variables.has(name);
+    }
+
+    /**
+     * Deletes a variable.
+     *
+     * @param {string} name Variable name
+     */
+    static delete(name) {
+        this.#variables.delete(name);
+    }
+
+    /**
+     * Clears all variables.
+     */
+    static clear() {
+        this.#variables.clear();
+    }
+
+    /**
+     * Gets all variable names.
+     *
+     * @returns {string[]}
+     */
+    static keys() {
+        return Array.from(this.#variables.keys());
+    }
+}