fix(ci): stabilize main test suite regressions (#17660)

* fix: stabilize main test suite regressions

* test(agent): update MiniMax normalization expectation

* test: stabilize remaining CI assertions

* test: harden config helper monkeypatching

* test: harden CI-only assertions

* fix(agent): propagate fast streaming interrupts

tools/tts_tool.py

@@ -44,11 +44,19 @@ from urllib.parse import urljoin
 from hermes_constants import display_hermes_home
 
 logger = logging.getLogger(__name__)
-try:
-    from hermes_cli.config import get_env_value
-except ImportError:
-    def get_env_value(name, default=None):
+def get_env_value(name, default=None):
+    """Read env values through the live config module.
+
+    Tests may monkeypatch and later restore ``hermes_cli.config.get_env_value``
+    before this module is imported. Resolve the helper at call time so TTS does
+    not keep a stale imported function for the rest of the test process.
+    """
+    try:
+        from hermes_cli.config import get_env_value as _get_env_value
+    except ImportError:
         return os.getenv(name, default)
+    value = _get_env_value(name)
+    return default if value is None else value
 from tools.managed_tool_gateway import resolve_managed_tool_gateway
 from tools.tool_backend_helpers import managed_nous_tools_enabled, prefers_gateway, resolve_openai_audio_api_key
 from tools.xai_http import hermes_xai_user_agent