fix(daemon): close discarded coroutines in get_daemon_task_factories

The initial daemon_tasks() call to count tasks created coroutines that
were immediately discarded, triggering RuntimeWarning "coroutine never
awaited". Explicitly close them after counting.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/pyra/plugins/registry.py

@@ -87,7 +87,10 @@ class PluginRegistry:
         factories: list[tuple[str, Callable[[], Coroutine]]] = []  # type: ignore[type-arg]
         for plugin in self._plugins.values():
             try:
-                n_tasks = len(plugin.daemon_tasks())
+                initial = plugin.daemon_tasks()
+                n_tasks = len(initial)
+                for c in initial:
+                    c.close()  # prevent "coroutine never awaited" RuntimeWarning
             except Exception:
                 continue
             for i in range(n_tasks):