84514a5f39
Addresses the #192 review: server usage documented in docs/grammar-draft.md (incl. back-compat statement for the additive SUBMIT field and the #100-class near-tie caveat); gateway pre-checks grammar payloads at 1 MiB (matching the engine's gbytes bound); negative tests for non-dict response_format, empty and oversized grammars, plus an explicit test that malformed GBNF passes the gateway by design (engine fail-soft, draft-source semantics). Measured compile overhead: 7.8 us/request typical schema, 17.9 us at the 32-level nesting cap. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>