fix(deduction-serve): resolve assert_corpus_sound name collision

Two unrelated functions shared the name assert_corpus_sound: the
practice-corpus soundness check in evals/deduction_serve/practice/gold.py
(no args) and the curriculum lane's case-contract check in
evals/curriculum_serve/runner.py (domain, cases). Renamed to
assert_practice_gold_sound and assert_lane_cases_sound respectively so
each name states what it validates, and updated all call sites, the
gold.py __all__ export, and two prose mentions that named the function.

[Verification]: uv run --python 3.12.13 core test --suite smoke -q → 569
passed; --suite deductive -q → 285 passed.

evals/curriculum_serve/runner.py

@@ -68,7 +68,7 @@ def assert_provenance(domain: str, cases: list[dict]) -> None:
         resolve_pinned(curriculum, pinned)  # raises UnratifiedChain
 
 
-def assert_corpus_sound(domain: str, cases: list[dict]) -> None:
+def assert_lane_cases_sound(domain: str, cases: list[dict]) -> None:
     """The independent oracle must re-derive every committed gold (§4.4)."""
     for case in cases:
         query = read_curriculum_question(case["text"])
@@ -105,7 +105,7 @@ def assert_anti_recall_coverage(cases: list[dict]) -> None:
 
 def build_report(domain: str, cases: list[dict]) -> dict:
     assert_provenance(domain, cases)
-    assert_corpus_sound(domain, cases)
+    assert_lane_cases_sound(domain, cases)
     assert_anti_recall_coverage(cases)
 
     counts = Counter({"correct": 0, "wrong": 0, "declined": 0})

evals/deduction_serve/practice/gold.py

@@ -119,7 +119,7 @@ _TEMPLATES: dict[str, tuple[tuple[str, Any], ...]] = {
     # the reader singularizes to ``x3``); ``a, b, c`` are the three distinct
     # middle/subject/predicate classes. Gold is the unconditional validity (modern
     # reading) of the standard form — cross-checked against the INDEPENDENT
-    # syllogism oracle in ``assert_corpus_sound``.
+    # syllogism oracle in ``assert_practice_gold_sound``.
     CATEGORICAL: (
         # Barbara (AAA) — valid.
         ("valid", lambda a, b, c: f"All {a}s are {b}s. All {c}s are {a}s. Therefore all {c}s are {b}s."),
@@ -180,7 +180,7 @@ def _en_neg(clause: str) -> str:
 
 #: English-band templates: (gold, text_builder, intended_premises, intended_query).
 #: The INTENDED formulas are the template's logical form over fixed placeholder
-#: atoms — the reader-independent gold ``assert_corpus_sound`` cross-checks
+#: atoms — the reader-independent gold ``assert_practice_gold_sound`` cross-checks
 #: against the truth-table oracle (INV-25: no reader, no ROBDD involvement).
 _EN_TEMPLATES: dict[str, tuple[tuple[str, Any, tuple[str, ...], str], ...]] = {
     EN_CONDITIONAL_SINGLE: (
@@ -1160,7 +1160,7 @@ class ConstructionGoldTether:
         return str(problem.payload["gold"])
 
 
-def assert_corpus_sound() -> None:
+def assert_practice_gold_sound() -> None:
     """Belt-and-suspenders: every generated case's by-construction gold must
     agree with an INDEPENDENT oracle over its projected form.
 
@@ -1214,6 +1214,6 @@ __all__ = [
     "ConstructionGoldTether",
     "DeductionSolver",
     "all_gold_problems",
-    "assert_corpus_sound",
+    "assert_practice_gold_sound",
     "generate_problems",
 ]

evals/deduction_serve/practice/runner.py

@@ -28,7 +28,7 @@ from evals.deduction_serve.practice.gold import (
     ConstructionGoldTether,
     DeductionSolver,
     all_gold_problems,
-    assert_corpus_sound,
+    assert_practice_gold_sound,
 )
 
 #: The committed sealed ledger lives next to its serving READER (chat/), mirroring
@@ -96,7 +96,7 @@ def build_sealed_artifact() -> dict[str, Any]:
 def seal_ledger(path: Path = _SEALED_LEDGER_PATH) -> dict[str, Any]:
     """Regenerate + write the committed sealed ledger. Verifies corpus soundness
     against the independent oracle first (a mis-stated gold can never seal)."""
-    assert_corpus_sound()
+    assert_practice_gold_sound()
     return write_sealed_ledger(path, build_sealed_artifact())
 
 

tests/test_deduction_serve_license.py

@@ -73,9 +73,9 @@ def test_shape_bands_are_exhaustive_for_the_projector() -> None:
 
 
 def test_corpus_is_sound_against_independent_oracle() -> None:
-    from evals.deduction_serve.practice.gold import assert_corpus_sound
+    from evals.deduction_serve.practice.gold import assert_practice_gold_sound
 
-    assert_corpus_sound()  # raises AssertionError on any mis-stated gold
+    assert_practice_gold_sound()  # raises AssertionError on any mis-stated gold
 
 
 def test_every_band_earns_serve_wrong_zero() -> None: