fix(alignment): repair f-string quoting in config check, add home to scope

- Fixed line 537: f-string now uses single quotes inside double-quoted shell
  command to avoid nested quote collision
- Added home = get_user_home(user) to check_config_integrity loop scope so
  the config check can resolve the correct home directory

scripts/agent-health-check.py

@@ -531,11 +531,11 @@ def check_config_integrity():
             print(f"  ⬜ {name}: cannot SSH — skip config check")
             continue
 
+        home = get_user_home(user)
+
         # Check YAML parses
         yaml_ok = ssh(host,
-            f"python3 -c "
-            f"'import yaml; yaml.safe_load(open(\'{home}/.hermes/config.yaml\')); print(\'OK\')" '
-            "2>&1 || echo 'FAIL'",
+            f"python3 -c \"import yaml; yaml.safe_load(open('{home}/.hermes/config.yaml')); print('OK')\" 2>&1 || echo 'FAIL'",
             user=user)
         if not yaml_ok:
             print(f"  ❌ {name}: SSH UNREACHABLE (config check skipped)")