Add traceable case interpretation with validated LLM output

tests/profiles/vcore/test_real_package.py

@@ -10,6 +10,9 @@ from viano_bug_analysis.case import CaseBuilder
 from viano_bug_analysis.lifecycle import CheckpointStore, Workspace
 from viano_bug_analysis.package import PackageReader, PackageValidator
 from viano_bug_analysis.profiles.vcore import ArchiveReader, VcoreImporter
+from viano_bug_analysis.analysis import CaseInterpreter
+from test_case_interpreter import FixtureAdapter, gateway, missing_payload
+import asyncio
 
 
 @pytest.mark.skipif(not os.environ.get("VBA_WOWDIAG_SAMPLE") or not os.environ.get("VBA_WOWSRC_SAMPLE"),
@@ -37,4 +40,24 @@ def test_full_bug20_package_pair(tmp_path):
                     assert len(matching) == 1
                     assert reader.read_bytes(matching[0]) == source.read_member(member)
     assert CaseBuilder(store).build("regression-case", "regression-package").reused
+    # Offline phase integration only: this fixture is not a test of model reasoning.
+    response = missing_payload()
+    response["observed_behavior"][0]["text"] = case["human_observations"]["observations"][0]["text"]
+    adapter = FixtureAdapter(response)
+    interpreter = CaseInterpreter(store, gateway(adapter))
+    interpreted = asyncio.run(interpreter.interpret("regression-case", "regression-package"))
+    assert interpreted.status == "COMPLETED"
+    with PackageReader(result.package) as before, PackageReader(interpreted.package) as after:
+        document = json.loads(after.read_bytes(interpreted.interpretation_ref))
+        assert document["expected_behavior_completeness"] == "missing"
+        assert document["interpretation"]["expected_behavior"] == []
+        assert document["interpretation"]["behavior_gap"] is None
+        assert after.manifest["artifacts"]["diagnosis"] is None
+        assert after.manifest["artifacts"]["change_request"] is None
+        for name in before.files:
+            if name != "manifest.json":
+                assert before.read_bytes(name) == after.read_bytes(name)
+    assert PackageValidator().validate(interpreted.package).valid
+    assert asyncio.run(interpreter.interpret("regression-case", "regression-package")).reused
+    assert len(adapter.requests) == 1
     assert [hashlib.sha256(path.read_bytes()).hexdigest() for path in (diag, src)] == original_hashes