- FK restrict: deleting a row a non-nullable `ref` still points at traps WO_T_FK (11), catchable. The compiler now records a `ref` field's target class in the class-table field_class metadata; the engine (wo_row_has_referrers) scans referencing scalar columns before a delete. Correctness-first full scan; the backlink-index optimization is recorded for later - docs/examples/employee now COMPILES AND RUNS all six modes against a WAL-durable database: seed (+@unique trap across restart), report (per-dept aggregates + payroll), staff (unique probe + backlink + ref nav), raise (update-through-row), drop (FK restrict), and persistence via replay - group-by SYNTAX parked to a future iteration (user decision): the report mode is hand-rolled from the shipped primitives meanwhile (same numbers). "table relations and FK" is complete - scripts/employee-accept.sh (8 checks) + a `just employee` module; manifest parser tolerates iteration 9c's [share]/[[share.clients]] sections so `woc .` builds the sample on this branch - fixtures trap/db-fk-restrict (code 11) + run/db-fk-restrict-catch; oop-e2e 79/0, woc-test 566/0, 15 runtime suites, log-watcher 7/0, employee-accept 8/0 - 9b story + status board updated Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
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