update to node site

website/scripts/GraphConnection.js

@@ -0,0 +1,21 @@
+/**
+ * @typedef {{ nodeId: string, pinId: string }} PinRef
+ */
+
+/**
+ * Represents a directional connection between two node pins.
+ */
+export class GraphConnection {
+    /**
+     * @param {PinRef} from Output pin reference.
+     * @param {PinRef} to Input pin reference.
+     * @param {string} kind Pin type kind.
+     * @param {string} [id]
+     */
+    constructor(from, to, kind, id) {
+        this.id = id ?? (globalThis.crypto?.randomUUID?.() ?? `conn_${Math.random().toString(36).slice(2, 10)}`);
+        this.from = { ...from };
+        this.to = { ...to };
+        this.kind = kind;
+    }
+}