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/bookmarks_services.ts

@@ -0,0 +1,34 @@
+import type {Bookmark} from "../bookmark.js";
+
+import {app} from "scripts/app.js";
+import {NodeTypesString} from "../constants.js";
+import {reduceNodesDepthFirst} from "../utils.js";
+
+const SHORTCUT_DEFAULTS = "1234567890abcdefghijklmnopqrstuvwxyz".split("");
+
+class BookmarksService {
+  /**
+   * Gets a list of the current bookmarks within the current workflow.
+   */
+  getCurrentBookmarks(): Bookmark[] {
+    return reduceNodesDepthFirst<Bookmark[]>(app.graph.nodes, (n, acc) => {
+      if (n.type === NodeTypesString.BOOKMARK) {
+        acc.push(n as Bookmark);
+      }
+    }, []).sort((a, b) => a.title.localeCompare(b.title));
+  }
+
+  getExistingShortcuts() {
+    const bookmarkNodes = this.getCurrentBookmarks();
+    const usedShortcuts = new Set(bookmarkNodes.map((n) => n.shortcutKey));
+    return usedShortcuts;
+  }
+
+  getNextShortcut() {
+    const existingShortcuts = this.getExistingShortcuts();
+    return SHORTCUT_DEFAULTS.find((char) => !existingShortcuts.has(char)) ?? "1";
+  }
+}
+
+/** The BookmarksService singleton. */
+export const SERVICE = new BookmarksService();