chore: integrate proman scaffold

- Add proman.yaml with 8 packages in dependency order
- Add @shazhou/proman as devDependency
- Replace root scripts: build/test/check/format → proman commands
- Keep typecheck script for standalone tsc --build

Fixes #27

packages/cli/src/__tests__/resolve-head-hash.test.ts

@@ -1,8 +1,8 @@
-import { afterEach, beforeEach, describe, expect, test } from 'vitest';
 import { mkdir, mkdtemp, rm } from "node:fs/promises";
 import { tmpdir } from "node:os";
 import { join } from "node:path";
 import { type CasRef, createThreadIndexEntry, type ThreadId } from "@united-workforce/protocol";
+import { afterEach, beforeEach, describe, expect, test } from "vitest";
 import { resolveHeadHash } from "../commands/shared.js";
 import { addHistoryEntry, createUwfStore, setThread } from "../store.js";