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/services/context_service.ts

@@ -0,0 +1,74 @@
+import type {DynamicContextNodeBase} from "../dynamic_context_base.js";
+
+import {NodeTypesString} from "../constants.js";
+import {getConnectedOutputNodesAndFilterPassThroughs} from "../utils.js";
+import {INodeInputSlot, INodeOutputSlot, INodeSlot, LGraphNode} from "@comfyorg/frontend";
+
+export let SERVICE: ContextService;
+
+const OWNED_PREFIX = "+";
+const REGEX_PREFIX = /^[\+⚠️]\s*/;
+const REGEX_EMPTY_INPUT = /^\+\s*$/;
+
+export function stripContextInputPrefixes(name: string) {
+  return name.replace(REGEX_PREFIX, "");
+}
+
+export function getContextOutputName(inputName: string) {
+  if (inputName === "base_ctx") return "CONTEXT";
+  return stripContextInputPrefixes(inputName).toUpperCase();
+}
+
+export enum InputMutationOperation {
+  "UNKNOWN",
+  "ADDED",
+  "REMOVED",
+  "RENAMED",
+}
+
+export type InputMutation = {
+  operation: InputMutationOperation;
+  node: DynamicContextNodeBase;
+  slotIndex: number;
+  slot: INodeSlot;
+};
+
+export class ContextService {
+  constructor() {
+    if (SERVICE) {
+      throw new Error("ContextService was already instantiated.");
+    }
+  }
+
+  onInputChanges(node: any, mutation: InputMutation) {
+    const childCtxs = getConnectedOutputNodesAndFilterPassThroughs(
+      node,
+      node,
+      0,
+    ) as DynamicContextNodeBase[];
+    for (const childCtx of childCtxs) {
+      childCtx.handleUpstreamMutation(mutation);
+    }
+  }
+
+  getDynamicContextInputsData(node: DynamicContextNodeBase) {
+    return node
+      .getContextInputsList()
+      .map((input: INodeInputSlot, index: number) => ({
+        name: stripContextInputPrefixes(input.name),
+        type: String(input.type),
+        index,
+      }))
+      .filter((i) => i.type !== "*");
+  }
+
+  getDynamicContextOutputsData(node: LGraphNode) {
+    return node.outputs.map((output: INodeOutputSlot, index: number) => ({
+      name: stripContextInputPrefixes(output.name),
+      type: String(output.type),
+      index,
+    }));
+  }
+}
+
+SERVICE = new ContextService();