chore: 重构项目结构

cwd-api/src/utils/crypto.ts

@@ -0,0 +1,8 @@
+export async function hashKey(key: string): Promise<string> {
+  const encoder = new TextEncoder();
+  const data = encoder.encode(key);
+  const hash = await crypto.subtle.digest('SHA-256', data);
+  return Array.from(new Uint8Array(hash))
+    .map((b) => b.toString(16).padStart(2, '0'))
+    .join('');
+}