feat(elicitation): add is_configured() and apply_runtime_config() to settings

tests/test_setup.py

@@ -1,3 +1,5 @@
+from unittest.mock import patch
+
 import pytest
 
 from unraid_mcp.core.exceptions import CredentialsNotConfiguredError, ToolError
@@ -17,3 +19,36 @@ def test_credentials_not_configured_error_is_exception():
 def test_credentials_not_configured_error_is_not_tool_error():
     """CredentialsNotConfiguredError must NOT be a ToolError — it bypasses MCP protocol error handling."""
     assert not issubclass(CredentialsNotConfiguredError, ToolError)
+
+
+def test_settings_is_configured_true():
+    from unraid_mcp.config import settings
+
+    with (
+        patch.object(settings, "UNRAID_API_URL", "https://example.com"),
+        patch.object(settings, "UNRAID_API_KEY", "key123"),
+    ):
+        assert settings.is_configured() is True
+
+
+def test_settings_is_configured_false_when_missing():
+    from unraid_mcp.config import settings
+
+    with (
+        patch.object(settings, "UNRAID_API_URL", None),
+        patch.object(settings, "UNRAID_API_KEY", None),
+    ):
+        assert settings.is_configured() is False
+
+
+def test_settings_apply_runtime_config_updates_module_globals():
+    from unraid_mcp.config import settings
+
+    original_url = settings.UNRAID_API_URL
+    original_key = settings.UNRAID_API_KEY
+    settings.apply_runtime_config("https://newurl.com/graphql", "newkey")
+    assert settings.UNRAID_API_URL == "https://newurl.com/graphql"
+    assert settings.UNRAID_API_KEY == "newkey"
+    # Reset so other tests are not affected
+    settings.UNRAID_API_URL = original_url
+    settings.UNRAID_API_KEY = original_key

unraid_mcp/config/settings.py

@@ -108,6 +108,24 @@ def validate_required_config() -> tuple[bool, list[str]]:
     return len(missing) == 0, missing
 
 
+def is_configured() -> bool:
+    """Return True if both required credentials are present."""
+    return bool(UNRAID_API_URL and UNRAID_API_KEY)
+
+
+def apply_runtime_config(api_url: str, api_key: str) -> None:
+    """Update module-level credential globals at runtime (post-elicitation).
+
+    Also sets matching environment variables so submodules that read
+    os.getenv() after import see the new values.
+    """
+    global UNRAID_API_URL, UNRAID_API_KEY
+    UNRAID_API_URL = api_url
+    UNRAID_API_KEY = api_key
+    os.environ["UNRAID_API_URL"] = api_url
+    os.environ["UNRAID_API_KEY"] = api_key
+
+
 def get_config_summary() -> dict[str, Any]:
     """Get a summary of current configuration (safe for logging).