Add custom nodes, Civitai loras (LFS), and vast.ai setup script

Includes 30 custom nodes committed directly, 7 Civitai-exclusive
loras stored via Git LFS, and a setup script that installs all
dependencies and downloads HuggingFace-hosted models on vast.ai.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

custom_nodes/comfyui-custom-scripts/web/js/playSound.js

@@ -0,0 +1,36 @@
+import { app } from "../../../scripts/app.js";
+
+app.registerExtension({
+	name: "pysssss.PlaySound",
+	async beforeRegisterNodeDef(nodeType, nodeData, app) {
+		if (nodeData.name === "PlaySound|pysssss") {
+			const onExecuted = nodeType.prototype.onExecuted;
+			nodeType.prototype.onExecuted = async function () {
+				onExecuted?.apply(this, arguments);
+				if (this.widgets[0].value === "on empty queue") {
+					if (app.ui.lastQueueSize !== 0) {
+						await new Promise((r) => setTimeout(r, 500));
+					}
+					if (app.ui.lastQueueSize !== 0) {
+						return;
+					}
+				}
+				let file = this.widgets[2].value;
+				if (!file) {
+					file = "notify.mp3";
+				}
+				if (!file.startsWith("http")) {
+					if (!file.includes("/")) {
+						file = "assets/" + file;
+					}
+					file = new URL(file, import.meta.url)
+				}
+				
+				const url = new URL(file);
+				const audio = new Audio(url);
+				audio.volume = this.widgets[1].value;
+				audio.play();
+			};
+		}
+	},
+});