docs: fix script descriptions and prepend corepack bootstrap

- .github/copilot-instructions.md: `ut run ci` actually runs tests
  with coverage only (no build); rewrite description accordingly.
  Site dev server uses VitePress' default port, not :8000; drop the
  hard-coded URL. Replace the `cd site && ut run build` invocation
  with the root `ut run site:build` script.
- scripts/utils.js: clarify the workspace-file comment — utoo reads
  `pnpm-workspace.yaml` as-is, so naming the file matters.
- README.md / README.zh-CN.md / packages/egg/README.md: prepend
  `corepack enable utoo` to the quickstart so clean machines get the
  pinned utoo before `ut create`/`ut install`.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: killagu

.github/copilot-instructions.md

@@ -61,16 +61,16 @@ ut run lint
 
 - `ut run test` - **Run all tests (~2 minutes). NEVER CANCEL. Set timeout to 180+ seconds.**
 - `ut run test:cov` - **Run tests with coverage (~2 minutes). NEVER CANCEL. Set timeout to 180+ seconds.**
-- `ut run ci` - **Run test coverage + build (~2.1 minutes). NEVER CANCEL. Set timeout to 180+ seconds.**
+- `ut run ci` - **Run tests with coverage (~2 minutes). NEVER CANCEL. Set timeout to 180+ seconds.**
 
 ### Linting Commands
 
 - `ut run lint` - Run oxlint across all packages (~2 seconds)
 
 ### Documentation Commands
 
-- `ut run site:dev` - Start documentation dev server at http://localhost:8000
-- `cd site && ut run build` - **Build documentation site (~24 seconds). NEVER CANCEL. Set timeout to 60+ seconds.**
+- `ut run site:dev` - Start documentation dev server (defaults to VitePress port 5173)
+- `ut run site:build` - **Build documentation site (~24 seconds). NEVER CANCEL. Set timeout to 60+ seconds.**
 
 ### Example Applications (Currently Not Working)
 
@@ -219,7 +219,7 @@ After making changes, always verify:
 
 1. **Build Success**: `ut run build` completes without errors
 2. **Linting Passes**: `ut run lint` shows no new errors
-3. **Documentation Loads**: `ut run site:dev` starts successfully and site loads at http://localhost:8000
+3. **Documentation Loads**: `ut run site:dev` starts successfully and the printed VitePress URL responds
 4. **Tests Run**: `ut run test` executes (some failures expected, focus on your changes)
 
 **Remember**: This is a complex enterprise framework. Always build first, validate incrementally, and focus on the core packages (`egg`, `core`, `utils`) for most development work.

README.md

@@ -27,6 +27,7 @@ English | [简体中文](./README.zh-CN.md)
 Follow the commands listed below.
 
 ```bash
+$ corepack enable utoo
 $ mkdir showcase && cd showcase
 $ ut create egg@beta
 $ ut install

README.zh-CN.md

@@ -26,6 +26,7 @@
 ## 快速开始
 
 ```bash
+corepack enable utoo
 mkdir showcase && cd showcase
 ut create egg@beta
 ut install

packages/egg/README.md

@@ -21,6 +21,7 @@
 Follow the commands listed below.
 
 ```bash
+$ corepack enable utoo
 $ mkdir showcase && cd showcase
 $ npm init egg --type=simple # Optionally ut create egg --type=simple
 $ ut install

scripts/utils.js

@@ -3,7 +3,8 @@ import path from 'node:path';
 
 import yaml from 'js-yaml';
 
-// Get all publishable packages from utoo workspace
+// Get all publishable packages by reading pnpm-workspace.yaml
+// (utoo consumes the same workspace manifest).
 
 export function getPublishablePackages(baseDir) {
   const workspaceFile = path.join(baseDir, 'pnpm-workspace.yaml');