feat: add tlrc package

[officialasishkumar]

Summary

• Add a tlrc package definition using upstream GitHub Releases.
• Select the GNU/Linux amd64 .deb asset.
• Add tlrc to the main manifest.

Validation

• Ran bash -n 01-main/packages/tlrc.
• Confirmed the definition resolves the latest amd64 .deb URL and published version from GitHub release JSON.
• Downloaded the current amd64 .deb and confirmed Package: tlrc with dpkg-deb -f.

Closes #1627

[cubic-dev-ai]

No issues found across 2 files

Confidence score: 5/5

• Automated review surfaced no issues in the provided summaries.
• No files require special attention.

_{Requires human review: Adding a new package (feat) involves architectural context and policy decisions regarding the inclusion of new external software, which requires human review.}