fix: use _load_module_temp for bootstrap modules to avoid sys.modules conflicts

bootstrap_comfyui_runtime() now uses _load_module_temp() with temporary
module names (_bootstrap_options, _bootstrap_cli_args, _bootstrap_cuda_malloc)
instead of real module names. This prevents cached stale modules from
sys.modules conflicting with ComfyUI's internal import chain (e.g.
nodes.py -> comfy.sd -> comfy.model_management -> comfy.cli_args).

Fixes the text-to-image runtime e2e failure:
  ImportError: cannot import name 'args' from 'comfy.cli_args'

comfyui_to_python/generator/generated_helpers.py

@@ -2,6 +2,7 @@ from ..node_runtime import (
     _find_from_extension_location,
     _is_comfyui_directory,
     _load_module,
+    _load_module_temp,
     add_comfyui_directory_to_sys_path,
     add_extra_model_paths,
     bootstrap_comfyui_runtime,
@@ -15,6 +16,7 @@ __all__ = [
     "_find_from_extension_location",
     "_is_comfyui_directory",
     "_load_module",
+    "_load_module_temp",
     "add_comfyui_directory_to_sys_path",
     "add_extra_model_paths",
     "bootstrap_comfyui_runtime",

comfyui_to_python/generator/render.py

@@ -9,6 +9,7 @@ from .generated_helpers import (
     _find_from_extension_location,
     _is_comfyui_directory,
     _load_module,
+    _load_module_temp,
     add_comfyui_directory_to_sys_path,
     add_extra_model_paths,
     bootstrap_comfyui_runtime,
@@ -35,6 +36,7 @@ class WorkflowRenderer:
         func_strings = []
         for func in [
             _load_module,
+            _load_module_temp,
             _is_comfyui_directory,
             _find_from_extension_location,
             get_value_at_index,