lease-sync: add DHCP lease sync daemon - #29135

Checking PR #29135: lease-sync: add DHCP lease sync daemon (Formalities Audit)

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

Commit ceb5746 - lease-sync: add DHCP lease sync daemon:

✅ Author and committer identities are valid
✅ Commit is not a merge commit
✅ Commit subject layout and length are valid: "lease-sync: add DHCP lease sync daemon"
✅ Commit description lines adhere to width formatting rules
✅ Commit contains a consistent and valid 'Signed-off-by:' line
⚠️ Warning: Commit is unsigned or cryptographic signature verification failed (Reason: unsigned). Signing commits is a recommended best practice for verifying identity, but is not mandatory.