Eish zarah actionable items: coupling trace, grounding type, self-grounding detection, golden calf halt

Torah grounds each change:

1. interpret.pl — coupling_trace field (Vayikra 10:1, 6:6)
   Fire is zarah because "asher lo tzivah otam" — the coupling trace
   IS the tzivah trace. Records which L1 facts grounded each interpretation.

2. challenge.pl — grounding_type achorai/panim (Shemot 33:23)
   "You will see My back, but My face shall not be seen."
   Text-backed challenges = achorai. Inferred challenges = panim.

3. resolve.pl — self-grounding detection (eish_zarah_reading §5.3)
   Counter-interpretation must bring NEW L1 evidence. Prevents
   circular reasoning (Westworld problem).

4. teiku.pl — challenge_sequence in teiku_record
   Records diagnostic trail to impasse, not just verdict.

5. avodah_zarah.pl — Form 2: golden calf detection (Shemot 32:4)
   Empty coupling trace + non-low confidence = uncoupled output.
   Real gold, sincere worship, false god.

6. korban.py — pydantic BaseModel + raw_korban preservation
   Construction spec §1.4 fulfilled. Floor between input and output
   never severed.

490 tests, 0 failures (195 Prolog, 186 Python, 33 Haskell, 76 Elixir).

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

talmudic_engine/src/reasoning/challenge.pl

@@ -12,12 +12,22 @@
 %%
 %% The challenge is a question, not a refutation.
 %% It says: "But what about THIS verse/mitzvah?"
+%%
+%% Each kushya carries a grounding_type — Shemot 33:23:
+%%   v'raita et ACHORAI u'fanai lo yera'u.
+%%   "You will see My back, but My face shall not be seen."
+%%
+%% achorai = effects directly observable in L1 text
+%%   (mitzvah_tension, shnei_ketuvim_tension, condition_tension)
+%% panim = intention inferred/attributed by the system
+%%   (domain_tension, kal_vachomer_tension)
 
 :- module(challenge, [
     challenge/2,
     find_contradiction/3,
     contradicts/2,
-    challenge_strength/2
+    challenge_strength/2,
+    grounding_type/2
 ]).
 
 :- use_module('../specification/mitzvot').
@@ -33,14 +43,16 @@
 
 %% Generate a challenge to an interpretation.
 %% A challenge consists of:
-%%   kushya(Contradicting, Interpretation, Strength)
+%%   kushya(Contradicting, CaseRef, Strength, GroundingType)
 %%   - Contradicting: the mitzvah or verse that creates tension
-%%   - Interpretation: the interpretation being challenged
+%%   - CaseRef: the interpretation being challenged
 %%   - Strength: strong | moderate | weak
-challenge(interpretation(CaseRef, Mitzvot, Verses, _Reading, _Confidence), Challenge) :-
+%%   - GroundingType: achorai | panim (Shemot 33:23)
+challenge(interpretation(CaseRef, Mitzvot, Verses, _Reading, _Confidence, _CouplingTrace), Challenge) :-
     find_contradiction(Mitzvot, Verses, Contradicting),
     challenge_strength(Contradicting, Strength),
-    Challenge = kushya(Contradicting, CaseRef, Strength).
+    grounding_type(Contradicting, GType),
+    Challenge = kushya(Contradicting, CaseRef, Strength, GType).
 
 %% ============================================================
 %% FIND CONTRADICTIONS
@@ -91,7 +103,7 @@ find_contradiction(_Mitzvot, Verses, contradiction(shnei_ketuvim_tension, Ref1,
 %% contradicts/2 — does a source contradict an interpretation?
 %% This is the core logic: given an interpretation's grounding,
 %% does some other part of Torah create a tension?
-contradicts(interpretation(_, Mitzvot, _, _, _), Source) :-
+contradicts(interpretation(_, Mitzvot, _, _, _, _), Source) :-
     find_contradiction(Mitzvot, [], Source).
 
 %% Domains that are inherently in tension
@@ -121,6 +133,21 @@ challenge_strength(contradiction(condition_tension, _, _, _), weak).
 challenge_strength(contradiction(kal_vachomer_tension, _, _, _), strong).
 challenge_strength(contradiction(shnei_ketuvim_tension, _, _, _), strong).
 
+%% ============================================================
+%% GROUNDING TYPE — Shemot 33:23
+%% ============================================================
+
+%% Achorai: directly observable in L1 text.
+%% The tension is stated, not inferred.
+grounding_type(contradiction(mitzvah_tension, _, _, _), achorai).
+grounding_type(contradiction(condition_tension, _, _, _), achorai).
+grounding_type(contradiction(shnei_ketuvim_tension, _, _, _), achorai).
+
+%% Panim: inferred by the system.
+%% The tension is attributed, not directly stated in text.
+grounding_type(contradiction(domain_tension, _, _, _), panim).
+grounding_type(contradiction(kal_vachomer_tension, _, _, _), panim).
+
 %% ============================================================
 %% HELPERS
 %% ============================================================