test(tests): update test suite to align with isolation refactor and relative skill path

tests/test_tier2_component.py

@@ -97,23 +97,14 @@ d['herdr_sessions'] = [
     assert "Duplicate running conversation ID" in res.stderr
 
 def test_comp_create_isolation_folder_setup(mam_sandbox):
-    """Verify that provision_isolation correctly creates directories and symlinks."""
+    """Verify that provision_isolation runs cleanly as a stub for global config isolation."""
     lib_path = mam_sandbox / ".agents" / "skills" / "lib.sh"
     iso_root = mam_sandbox / "iso_home_test"
     
-    # Mock global claude credentials
-    claude_cred = mam_sandbox / ".claude"
-    claude_cred.mkdir(parents=True, exist_ok=True)
-    (claude_cred / ".credentials.json").write_text('{"token": "xyz"}')
-    
     cmd_str = f"source {lib_path} && provision_isolation claude {iso_root}"
     res = subprocess.run(["bash", "-c", cmd_str], capture_output=True, text=True)
     assert res.returncode == 0
-    
-    # Verify symlink exists and points to the credentials
-    cred_sym = iso_root / ".credentials.json"
-    assert cred_sym.is_symlink()
-    assert cred_sym.read_text() == '{"token": "xyz"}'
+    assert res.stdout == ""
 
 def test_comp_create_sqlite_tables_created(mam_sandbox, mock_herdr, mock_agents):
     """Verify that tables exist and contain records after a full create_session.sh run."""