refactor: enforce BasedPyright strict type checking (#5158)

tests/command/test_router_dispatchable.py

@@ -2,6 +2,7 @@
 
 from __future__ import annotations
 
+from inspect import Parameter, signature
 from unittest.mock import AsyncMock, MagicMock
 
 import pytest
@@ -13,6 +14,13 @@ from nanobot.command.builtin import (
 from nanobot.command.router import CommandContext, CommandRouter
 
 
+def test_command_context_requires_loop_as_keyword_dependency() -> None:
+    loop_parameter = signature(CommandContext).parameters["loop"]
+
+    assert loop_parameter.kind is Parameter.KEYWORD_ONLY
+    assert loop_parameter.default is Parameter.empty
+
+
 class TestIsDispatchableCommand:
     """Unit tests for the is_dispatchable_command() predicate."""