RubyLLM (and other OpenAI-convention clients) embed strict:true/false directly
inside a function tools parameters JSON schema. Gemini/Antigravity rejects the
unrecognized keyword with a 400 ("Unknown name strict ... Cannot find field"),
the same failure class as the existing multipleOf entry. Broke every Chatwit
Captain tool-calling call routed through witdev_antigravity/gemini-*.
Reconstructed onto current release/v3.8.49 tip (preserves #8231 CIVIC_INTEGRITY
exclusion; the author's stale base showed it as a spurious revert).
Co-authored-by: Witroch4 <wital@example.com>
Co-authored-by: diegosouzapw <8016841+diegosouzapw@users.noreply.github.com>
