fix(worker): keep tunnel cleanup consistent - #3
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Summary
Why
The scheduled cleanup previously deleted the Cloudflare tunnel before looking up and deleting its DNS record. If the DNS lookup or deletion then failed, cleanup retained the
LINKUP_TUNNELSKV entry even though the tunnel was already gone. Subsequentlinkup startcalls reused those stale credentials and cloudflared failed withUnauthorized: Tunnel not found.Performing DNS cleanup first ensures DNS failures leave the tunnel and KV record consistent. If tunnel deletion fails after DNS deletion, the next cleanup attempt tolerates the missing DNS record and retries the tunnel deletion.
Validation
cargo test -p linkup-workercargo clippy -p linkup-worker --all-targets -- -D warningscargo fmt --all -- --check