claude@clouddev1
4752ba29a0
Multi-column FK parsing on both surfaces: DSL from P.(a, b) to C.(x, y) (parenthesized endpoint; single bare form unchanged) and SQL FOREIGN KEY (a, b) REFERENCES P(x, y) incl. bare-reference auto-expand. consume_fk_reference + the table-level/ALTER FK parsers collect column lists; the from P. completion now offers ( (snapshots updated). 12 integration tests in tests/it/compound_fk.rs cover parse (both surfaces), engine-enforced FK, arity + partial-PK + per-pair-type-mismatch refusal, --create-fk per-column, save->rebuild round-trip, undo (one step), and single-column preservation. Mark T3 [x]; ADR-0043 implemented.