9b691b2c7c
lower-to-canonical.ts: clauseEquivalent now compares compoundOperator and compoundGroupId. Previously, compound assertions with different operators (.and vs .or) were considered equivalent. fol-compiler.ts: adaptGrammarFormulaToLogicAst validates node.kind against known formula kinds (forall/exists/and/or/not/implies/predicate) before passing through as FormulaNode. Previously any object with a 'kind' property was blindly cast. predicates.ts / registry.ts: @deprecated tags on globalPredicateRegistry and globalClauseRegistry. Both are still functional but consumers should transition to explicit injection via LogicEngineOptions / EvaluationOptions. 454 solver+DSL tests pass, zero regressions.