Add independently reviewed early investigation completion

tests/test_project_research.py

@@ -203,7 +203,7 @@ def test_model_loop_uses_project_tools_and_compact_previous_result(tool_case):
             if previous:
                 assert context["evidence"][eid]["content"]["items"]
             assert "inputs" not in context["case"]
-            assert request["prompt_version"]=="investigation_project_v2"
+            assert request["prompt_version"]=="investigation_project_v3"
             reply={"assessment":{"semantic_score":50,"reason":"Scoped fact","evidence_refs":[eid]} if previous else None,
                    "update":{"confidence":"plausible","evidence_refs":[eid] if previous else [],"resolve_questions":[],"add_questions":[],"note":"Query typed identity"},
                    "next":{"kind":"finish","reason":"Check complete"} if previous else {"kind":"tool","operation":"project.query","arguments":rows()}}
@@ -263,7 +263,14 @@ def test_started_project_loop_keeps_legacy_prompt_protocol(tool_case):
     with PackageReader(store.latest('case-A','stable-package')) as reader:
         initial=loop._begin(reader)
     initial.pop('prompt_protocol')
-    loop._save(initial)
+    initial.pop('early_stop_protocol')
+    context=loop._context(initial,'H1',loop._budget('case-A','stable-package'))
+    initial['hypotheses']['H1']['iterations']=1
+    initial['active']={'hypothesis_id':'H1','iteration':1,'attempt':0,'phase':'prompt',
+        'context_ref':'analysis/investigation/0001/contexts/H1-0001.json',
+        'context_sha256':'0'*64,'decision':None,'llm_ref':None,'test_request':None,
+        'test_deadline':None,'retry_token':'initial'}
+    loop._save(initial,context=context)
     result=asyncio.run(loop.step('case-A','stable-package'))
     assert result.status=='PROGRESSED' and adapter.calls==1
     assert PackageValidator().validate(result.package).valid