fix(typescript): parse CRLF changesets in release tooling

[wtxadmin-oss]

Summary

• normalize CRLF line endings before parsing changeset frontmatter
• exercise internal peer-range preparation with both LF and CRLF changesets
• add a regression test proving CRLF changesets participate in Canary baseline preflight
• include the required TypeScript changeset

The change stays at the local parsing boundary and does not alter release publication or workflow gates.

Validation

• pnpm test:release-channel — 25 passed
• pnpm exec prettier --check scripts/release-channel.mjs scripts/release-channel.test.mjs .changeset/calm-crabs-handle-crlf.md
• pnpm exec eslint scripts/release-channel.mjs scripts/release-channel.test.mjs
• pre-commit checks passed

Closes #2527

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Summary by cubic

Fixes release tooling so it recognizes changesets with CRLF line endings, which previously caused Windows-authored changes to be missed during Canary baseline checks.

• Normalizes CRLF to LF before parsing changeset frontmatter in release-channel.mjs.
• Adds tests covering internal peer-range prep and Canary baseline preflight for both LF and CRLF changesets.
• Includes a patch changeset for mcp-use.

Closes #2527.

^{Written for commit cc92e78. Summary will update on new commits.}

[cubic-dev-ai]

No issues found across 3 files

_{Re-trigger cubic}