claude@clouddev1
b14f0199e9
Move the FK column fields String->Vec<String> through all six layers (AddRelationship/SqlForeignKey AST, RelationshipSchema, metadata, project.yaml, ReadForeignKey, RelationshipEnd). Metadata stores comma-joined lists in the existing TEXT cells; project.yaml endpoints now columns: [a, b] (house style). Executor logic is multi-column ready: resolve_fk_parent_columns (full-PK F-A + auto-expand F-D), per-pair type-compat, schema_to_ddl multi-column emission, pragma FK read grouped by id, auto-name + --create-fk per-column, multi-column teaching echo. Single-column behaviour preserved (one-element vecs); all 2181 tests green. The grammar to parse multi-column input lands next.