Use compact investigation working sets with durable local evidence recall

tests/test_project_research.py

@@ -204,7 +204,7 @@ def test_model_loop_uses_project_tools_and_compact_previous_result(tool_case, re
             if previous:
                 assert context["evidence"][eid]["content"]["items"]
             assert "inputs" not in context["case"]
-            assert request["prompt_version"] in ({"investigation_project_v9","investigation_project_v14"} if recall == "upgrade" else {"investigation_project_v9" if recall else "investigation_project_v14"})
+            assert request["prompt_version"] in ({"investigation_project_v9","investigation_project_v15"} if recall == "upgrade" else {"investigation_project_v9" if recall else "investigation_project_v15"})
             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()}}
@@ -216,13 +216,13 @@ def test_model_loop_uses_project_tools_and_compact_previous_result(tool_case, re
                     assert context['evidence'][recalled]['content']['items']
                     reply['update']['evidence_refs'] = [recalled]
                     reply['next'] = {'kind':'finish','reason':'Recalled exact evidence; uncertainty remains'}
-            if request['prompt_version']=='investigation_project_v14':
+            if request['prompt_version']=='investigation_project_v15':
                 reply['update']['causal_review']={'effect':'neutral','support':[],'against':[],
                     'reason':'Scoped observations are not independent evidence of a defect.'}
-            if request['prompt_version']=='investigation_project_v14':
+            if request['prompt_version']=='investigation_project_v15':
                 reply['update']['working_brief']={'format_version':1,'findings':[],
                     'uncertainties':['Scoped observations only.'],'next_question':'Check remaining uncertainty.','changes':[]}
-            if request['prompt_version']=='investigation_project_v14':
+            if request['prompt_version']=='investigation_project_v15':
                 b=reply['update']['working_brief'];b['format_version']=2;b.pop('changes');b['retired']=[]
                 for k in ('evidence_refs','causal_review','note'):reply['update'].pop(k,None)
                 if reply['assessment']:reply['assessment'].pop('evidence_refs',None)