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/rgthree-comfy/src_web/comfyui/testing/comfyui_env.ts

@@ -0,0 +1,71 @@
+import type {LGraphNode} from "@comfyorg/frontend";
+
+import {app} from "scripts/app.js";
+import {wait} from "rgthree/common/shared_utils.js";
+import {NodeTypesString} from "../constants.js";
+
+type addNodeOptions = {
+  placement?: string;
+};
+
+/**
+ * A testing environment to make setting up, clearing, and queuing more predictable in an
+ * integration test environment.
+ */
+export class ComfyUITestEnvironment {
+  private lastNode: LGraphNode | null = null;
+  private maxY = 0;
+
+  constructor() {}
+
+  wait = wait;
+
+  async addNode(nodeString: string, options: addNodeOptions = {}) {
+    const [canvas, graph] = [app.canvas, app.graph];
+    const node = LiteGraph.createNode(nodeString)!;
+    let x = 0;
+    let y = 30;
+    if (this.lastNode) {
+      const placement = options.placement || "right";
+      if (placement === "under") {
+        x = this.lastNode.pos[0];
+        y = this.lastNode.pos[1] + this.lastNode.size[1] + 30;
+      } else if (placement === "right") {
+        x = this.lastNode.pos[0] + this.lastNode.size[0] + 100;
+        y = this.lastNode.pos[1];
+      } else if (placement === "start") {
+        x = 0;
+        y = this.maxY + 50;
+      }
+    }
+    canvas.graph!.add(node);
+    node.pos = [x, y];
+    canvas.selectNode(node);
+    app.graph.setDirtyCanvas(true, true);
+    await wait();
+    this.lastNode = node;
+    this.maxY = Math.max(this.maxY, y + this.lastNode.size[1]);
+    return (this.lastNode = node);
+  }
+
+  async clear() {
+    app.clean();
+    app.graph.clear();
+    const nodeConfig = await this.addNode(NodeTypesString.KSAMPLER_CONFIG);
+    const displayAny = await this.addNode(NodeTypesString.DISPLAY_ANY);
+    nodeConfig.widgets = nodeConfig.widgets || [];
+    nodeConfig.widgets[0]!.value = Math.round(Math.random() * 100);
+    nodeConfig.connect(0, displayAny, 0);
+    await this.queuePrompt();
+    app.clean();
+    app.graph.clear();
+    this.lastNode = null;
+    this.maxY = 0;
+    await wait();
+  }
+
+  async queuePrompt() {
+    await app.queuePrompt(0);
+    await wait(150);
+  }
+}