golangci-lint errcheck flagged six unchecked error returns, failing the
pr/test workflow's lint step and skipping tests.
- Blank-assign hash writes in Row.Key and MarkHidden calls
- Close response body via deferred func matching node-lookup convention
- Read test request body with io.ReadAll instead of a single Body.Read
Single Go binary for the ClickHouse log store (logs.raw): chlog with
cat/tail/grep subcommands, plus chcat/chtail/chgrep argv[0]-dispatched
symlink entrypoints. Every query is time-bounded and fully parameterized;
chgrep guards wide unfiltered scans. Ships nfpm RPM with completions and
woodpecker PR/tag pipelines mirroring node-lookup.