openthread-br: drop luci-app-openthread, moved to luci repo - #30090

Checking PR #30090: openthread-br: drop luci-app-openthread, moved to luci repo (Formalities Audit)

✅ Pull request originates from a dedicated feature branch (openthread-br-decouple-luci)

Commit 262842c - openthread-br: drop luci-app-openthread, moved to luci repo:

✅ Author and committer identities are valid
✅ Commit is not a merge commit
✅ Commit subject layout and length are valid: "openthread-br: drop luci-app-openthread, moved to luci repo"
✅ Commit description lines adhere to width formatting rules
✅ Commit contains a valid 'Signed-off-by:' line matching author or committer
⚠️ Warning: No reference link (e.g., upstream release notes, changelog, or history URL) detected in description.
⚠️ 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.