test(ohmo): harden memory prompt isolation coverage

src/openharness/ui/coordinator_drain.py

@@ -134,7 +134,7 @@ async def submit_follow_up(
         latest_user_prompt=prompt_seed,
         extra_skill_dirs=bundle.extra_skill_dirs,
         extra_plugin_roots=bundle.extra_plugin_roots,
-        include_project_memory=bundle.include_project_memory,
+        include_project_memory=getattr(bundle, "include_project_memory", True),
     )
     bundle.engine.set_system_prompt(system_prompt)
     try:

tests/test_ohmo/test_gateway.py

@@ -625,6 +625,7 @@ async def test_runtime_pool_prompt_excludes_project_memory(tmp_path, monkeypatch
     workspace = tmp_path / ".ohmo-home"
     initialize_workspace(workspace)
     add_ohmo_memory_entry(workspace, "personal", "ohmo-only personal fact")
+    monkeypatch.delenv("CLAUDE_CODE_COORDINATOR_MODE", raising=False)
     monkeypatch.setenv("OPENHARNESS_CONFIG_DIR", str(tmp_path / "config"))
     monkeypatch.setenv("OPENHARNESS_DATA_DIR", str(tmp_path / "data"))
     add_project_memory_entry(tmp_path, "project", "project memory should not leak")

tests/test_ohmo/test_prompts.py

@@ -36,6 +36,7 @@ def test_ohmo_prompt_includes_persona_and_memory(tmp_path: Path):
 
 
 def test_ohmo_runtime_prompt_can_exclude_project_memory(tmp_path: Path, monkeypatch):
+    monkeypatch.delenv("CLAUDE_CODE_COORDINATOR_MODE", raising=False)
     monkeypatch.setenv("OPENHARNESS_DATA_DIR", str(tmp_path / "data"))
     workspace = tmp_path / ".ohmo-home"
     initialize_workspace(workspace)