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/power_prompt.ts

@@ -0,0 +1,48 @@
+import type {LGraphNode, LGraphNodeConstructor} from "@comfyorg/frontend";
+import type {ComfyNodeDef} from "typings/comfy.js";
+
+import {app} from "scripts/app.js";
+import {addConnectionLayoutSupport} from "./utils.js";
+import {PowerPrompt} from "./base_power_prompt.js";
+import {NodeTypesString} from "./constants.js";
+
+let nodeData: ComfyNodeDef | null = null;
+app.registerExtension({
+  name: "rgthree.PowerPrompt",
+  async beforeRegisterNodeDef(nodeType: typeof LGraphNode, passedNodeData: ComfyNodeDef) {
+    if (passedNodeData.name.includes("Power Prompt") && passedNodeData.name.includes("rgthree")) {
+      nodeData = passedNodeData;
+      const onNodeCreated = nodeType.prototype.onNodeCreated;
+      nodeType.prototype.onNodeCreated = function () {
+        onNodeCreated ? onNodeCreated.apply(this, []) : undefined;
+        (this as any).powerPrompt = new PowerPrompt(this as LGraphNode, passedNodeData);
+      };
+      addConnectionLayoutSupport(nodeType as LGraphNodeConstructor, app, [
+        ["Left", "Right"],
+        ["Right", "Left"],
+      ]);
+    }
+  },
+  async loadedGraphNode(node: LGraphNode) {
+    if (node.type === NodeTypesString.POWER_PROMPT) {
+      setTimeout(() => {
+        // If the first output is STRING, then it's the text output from the initial launch.
+        // Let's port it to the new
+        if (node.outputs[0]!.type === "STRING") {
+          if (node.outputs[0]!.links) {
+            node.outputs[3]!.links = node.outputs[3]!.links || [];
+            for (const link of node.outputs[0]!.links) {
+              node.outputs[3]!.links.push(link);
+              (node.graph || app.graph).links[link]!.origin_slot = 3;
+            }
+            node.outputs[0]!.links = null;
+          }
+          node.outputs[0]!.type = nodeData!.output![0] as string;
+          node.outputs[0]!.name = nodeData!.output_name![0] || (node.outputs[0]!.type as string);
+          node.outputs[0]!.color_on = undefined;
+          node.outputs[0]!.color_off = undefined;
+        }
+      }, 50);
+    }
+  },
+});