'allow_git_url_install = true' Doesn't work

```
## ComfyUI-Manager: installing dependencies done.
** ComfyUI startup time: 2026-06-27 16:58:06.732
** Platform: Linux
** Python version: 3.11.14 (main, Oct 21 2025, 18:31:21) [GCC 11.2.0]
** Python executable: /config/workspace/miniconda3/envs/comfyui/bin/python
** ComfyUI Path: /config/workspace/comfyUI
** ComfyUI Base Folder Path: /config/workspace/comfyUI
** User directory: /config/workspace/comfyUI/user
** ComfyUI-Manager config path: /config/workspace/comfyUI/user/__manager/config.ini
** Log path: /config/workspace/comfyUI/user/comfyui.log
```

`[ERROR] ERROR: This action requires 'allow_git_url_install = true' in config.ini ([default] section). This setting is independent of security_level. Reference: https://github.com/ltdrdata/ComfyUI-Manager#security-policy`

My /comfyUI/user/__manager/config.ini
```
[default]
preview_method = latent2rgb
git_exe =
use_uv = False
channel_url = https://raw.githubusercontent.com/ltdrdata/ComfyUI-Manager/main
share_option = all
bypass_ssl = False
file_logging = True
component_policy = workflow
update_policy = nightly-comfyui
windows_selector_event_loop_policy = False
model_download_by_agent = False
downgrade_blacklist =
security_level = weak
always_lazy_install = False
network_mode = public
db_mode = cache
allow_git_url_install = True
```

Start by tracing how the [default] section of user/__manager/config.ini handles allow_git_url_install, using the provided Linux and Python environment details. Compare the behavior with the linked security-policy reference and reproduce the reported error. Done means a true setting is recognized and the requested Git URL installation proceeds without that configuration error.

Written by the indexing model from the issue text.