nx_doctor_datadriven_test.nx

nx_doctor_datadriven_test.nx -- DATA-DRIVEN self-heal with CLEAN RACI. The Doctor is NOT told which keyword to fix; it LEARNS the offending token from the Engineer's captured diagnostic, then heals exactly that. This generalizes the fixer beyond a hardcoded match/in pair to ANY reserved-keyword-as-identifier the compiler flags. ENGINEER (R: detect) eng_compile_diag -> compile-fail + captures the diagnostic DOCTOR (R: diagnose+fix) doc_offending_kw reads the artifact -> learns 'match'; doc_heal_token renames exactly that token ENGINEER (R: verify) eng_compile -> re-verifies the healed candidate WARDEN/COUNCIL (A) cc_council -> ACTs only on the Engineer's verdict The fixer never names its own target (data, not guess) and never blesses its own fix. Known answer: original FAILS, learned token = "match", healed COMPILES, council ACT.