luci-app-ha-cluster: add LuCI interface - #8549

Checking PR #8549: luci-app-ha-cluster: add LuCI interface (Formalities Audit)

✅ Pull request originates from a dedicated feature branch (add-luci-app-ha-cluster)

Commit cb859dc - luci-app-ha-cluster: add LuCI interface:

✅ Author and committer identities are valid
✅ Commit is not a merge commit
✅ Commit subject layout and length are valid: "luci-app-ha-cluster: add LuCI interface"
✅ Commit description lines adhere to width formatting rules
✅ Commit contains a valid 'Signed-off-by:' line matching author or committer
⚠️ 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.