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/protocol/src/__tests__/thread-index.test.ts

@@ -1,4 +1,4 @@
-import { describe, expect, test } from 'vitest';
+import { describe, expect, test } from "vitest";
 import {
   createThreadIndexEntry,
   markThreadSuspended,

packages/protocol/src/__tests__/types.test.ts

@@ -1,4 +1,4 @@
-import { describe, expect, test } from 'vitest';
+import { describe, expect, test } from "vitest";
 import type { StartNodePayload, StepRecord, Target } from "../types.js";
 
 describe("Protocol types for thread/edge location", () => {