62f09bebc501dd81ade577a57019ea0c524ed0d9
A self-referential ON DELETE CASCADE FK (e.g. T.ParentId -> T.id) is returned by read_relationships_inbound as a child whose table IS the delete target. The before/after row-count diff then includes the directly-deleted rows (already in rows_affected), so deleting a chain root reported 3 cascaded rows when only 2 were removed via the self-reference. Fix in both do_delete (DSL) and do_sql_delete (SQL): when the child table equals the target, subtract rows_affected from the diff and guard on the corrected count (a leaf delete no longer reports a phantom 0-row self-cascade); the target's CSV is already queued, so a self-ref child is not re-added to rewritten_tables. Pre-existing in do_delete; surfaced by the 3f DA pass, fixed in both paths to keep DSL/SQL parity. Behaviour: report only the rows removed via the self-reference (user-confirmed). Also adds an app-level render test for the SQL DELETE path (handle_dsl_delete_success via CommandOutcome::Delete) — the shared renderer's ok-summary + per-relationship cascade line were exercised only through the DSL path before. Test-first: self_referential_cascade_counts_only_cascaded_rows added for both paths (asserted 2, failed at 3 before the fix). 1545 pass / 0 fail / 1 ignored. Clippy clean.
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