Updates the chained-call design doc: Pascal moves from "blocked" to covered
(#791) — the earlier "blocked" read was wrong, caused by probing only the
paren-less form. 13 languages now shipped; EXTRACTION_VERSION 16.
Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
A checked-in design doc for the #645/#608/#750 chained-call mechanism — the
permanent, discoverable record the work previously lacked (it lived only in git
history, the tracking issue, and an untracked scratch handoff). Covers the 3-part
mechanism, the three shared resolvers + receiver styles, the per-language coverage
matrix (12 shipped with A/B results), the conformance pass, and the full 21-language
README classification (incl. why TypeScript + Luau were skipped and Pascal is blocked).
Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
