feat: add account alias command

[Loongphy]

Summary

• add codex-auth alias set <selector> <alias> for updating aliases on existing stored accounts
• add codex-auth alias clear <selector> for removing stored aliases
• document alias behavior and cover parsing/help/CLI flows in tests

Usage examples

codex-auth alias set 02 work
codex-auth alias set john@example.com personal
codex-auth alias set old-name new-name
codex-auth alias clear work

Validation

• HOME=/tmp/codex-auth-alias-verify zig build run -- list
• HOME=/tmp/codex-auth-alias-test-full zig build test
• npm run check:versions
• npm run check:release-metadata

[pkg-pr-new]

Open in StackBlitz

@loongphy/codex-auth-darwin-arm64

npx https://pkg.pr.new/@loongphy/codex-auth-darwin-arm64@b71d8e6

@loongphy/codex-auth-darwin-x64

npx https://pkg.pr.new/@loongphy/codex-auth-darwin-x64@b71d8e6

@loongphy/codex-auth-linux-arm64

npx https://pkg.pr.new/@loongphy/codex-auth-linux-arm64@b71d8e6

@loongphy/codex-auth-linux-x64

npx https://pkg.pr.new/@loongphy/codex-auth-linux-x64@b71d8e6

@loongphy/codex-auth-win32-arm64

npx https://pkg.pr.new/@loongphy/codex-auth-win32-arm64@b71d8e6

@loongphy/codex-auth-win32-x64

npx https://pkg.pr.new/@loongphy/codex-auth-win32-x64@b71d8e6

@loongphy/codex-auth

npx https://pkg.pr.new/@loongphy/codex-auth@b71d8e6

commit: b71d8e6