More tests & exports from pg-protocol

[brianc]

Update more exports and visibility of files. Also, include the ./lib sub-directory in pg-native (it was mistakenly excluded) when the library is published to npm. This wasn't caught in my tests since they reference local copy of all source and it was a publishing specific issue.

[Copilot]

Pull Request Overview

This PR updates the pg-protocol module exports and test coverage while ensuring that the pg-native ./lib sub-directory is included in the npm package.

• Update the ESM wrapper for pg-protocol to use a namespace import
• Add new tests for both pg-protocol and CommonJS imports
• Extend the list of paths in the CommonJS import test to verify inclusion of additional files

Reviewed Changes

Copilot reviewed 3 out of 6 changed files in this pull request and generated no comments.

File	Description
packages/pg-protocol/esm/index.js	Changed default import to a namespace import to re-export properties
packages/pg-esm-test/pg-protocol.test.js	Introduced tests verifying proper export of protocol components
packages/pg-esm-test/common-js-imports.test.cjs	Expanded test paths to include new modules from pg-protocol and pg-native

Files not reviewed (3)

• packages/pg-esm-test/package.json: Language not supported
• packages/pg-native/package.json: Language not supported
• packages/pg-protocol/package.json: Language not supported

Comments suppressed due to low confidence (2)

packages/pg-protocol/esm/index.js:2

• Changing from a default import to a namespace import may impact consumers expecting a default export. Please verify that this update is intentional and compatible with downstream usage.

import * as protocol from '../dist/index.js'

packages/pg-esm-test/common-js-imports.test.cjs:10

• Ensure that 'pg-native/lib/build-result.js' is correctly included in the published npm package to prevent runtime import errors.

  'pg-native/lib/build-result.js',