claude@clouddev1
c2eb8cb982
A `CREATE TABLE` whose foreign key references the table being created (`create table T (id int primary key, parent_id int references T(id))`) parses and executes correctly, but the pre-submit schema-existence diagnostic flagged the not-yet-created table as "no such table" — the FK parent slot is `IdentSource::Tables`, and the target isn't in the schema yet. schema_existence_diagnostics now collects the CREATE TABLE target(s) (`IdentSource::NewName`, role `table_name`) and exempts a `Tables` reference matching one (case-insensitively) from the unknown-table flag. A FK to a genuinely-unknown *other* table is still flagged. Tests: self-ref FK not flagged; FK to an unknown other table still flagged. Full suite 1915 passing / 0 failing / 1 ignored; clippy clean.