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/agent-builtin/__tests__/llm-parse.test.ts

@@ -1,4 +1,4 @@
-import { describe, expect, test } from 'vitest';
+import { describe, expect, test } from "vitest";
 import type { LlmToolCall } from "../src/llm/types.js";
 
 /** Mirror OpenAI response shape for parser coverage via chatCompletionWithTools integration later. */