bird3: add new package - #30166

Checking PR #30166: bird3: add new package (Formalities Audit)

✅ Pull request originates from a dedicated feature branch (add-bird3)

Commit 039ea49 - bird3: add new package:

✅ Author and committer identities are valid
✅ Commit is not a merge commit
✅ Commit subject layout and length are valid: "bird3: add new package"
✅ Commit description lines adhere to width formatting rules
✅ Commit contains a valid 'Signed-off-by:' line matching author or committer
✅ Excellent! Commit contains a valid cryptographic signature (GPG/SSH). Thank you for signing your work! (Verified via GitHub Profile)

Commit 4ed849e - bird3: drop stale conffiles entries:

✅ Author and committer identities are valid
✅ Commit is not a merge commit
✅ Commit subject layout and length are valid: "bird3: drop stale conffiles entries"
✅ Commit description lines adhere to width formatting rules
✅ Commit contains a valid 'Signed-off-by:' line matching author or committer
✅ Excellent! Commit contains a valid cryptographic signature (GPG/SSH). Thank you for signing your work! (Verified via GitHub Profile)
⚠️ Warning: No reference link (e.g., upstream release notes, changelog, or history URL) detected in description.