First commit.

Signed-off-by: Chen Xiao <abigwc@gmail.com>

client/node_modules/mermaid/dist/diagrams/treemap/utils.d.ts

@@ -0,0 +1,14 @@
+import type { TreemapNode } from './types.js';
+/**
+ * Converts a flat array of treemap items into a hierarchical structure
+ * @param items - Array of flat treemap items with level, name, type, and optional value
+ * @returns A hierarchical tree structure
+ */
+export declare function buildHierarchy(items: {
+    level: number;
+    name: string;
+    type: string;
+    value?: number;
+    classSelector?: string;
+    cssCompiledStyles?: string[];
+}[]): TreemapNode[];