[ianks]

liquid-spec's main CI can fail before it reaches the reference suite: the JSON-RPC timeout test gives subprocess handshakes only 100ms, and the feature-coverage gate has six existing uncovered Shopify tags with no recorded baseline.

This keeps the intentional stalled request at 100ms while giving process initialization and restart one second. It also records the six existing feature-coverage gaps as known debt. New uncovered tags still fail the gate, and a baseline entry fails once its feature gains reference coverage.

The baseline changes only the timeout test and feature-coverage check. In a clean v5.13 checkout, the pre-push gate passes with 169 tests and 741 assertions; the reference adapter passes 5,020 specs, and the coverage check reports the six acknowledged tags.