Strange proxy setting

proxyman list
```
Hmm... listing it all

Shell proxy settings : /root/.bashrc
export http_proxy="http://http://127.0.0.1:7890/"
export ftp_proxy="ftp://http://127.0.0.1:7890/"
export rsync_proxy="rsync://http://127.0.0.1:7890/"
export no_proxy="localhost,127.0.0.1,192.168.1.1,::1,*.local"
export HTTP_PROXY="http://http://127.0.0.1:7890/"
export FTP_PROXY="ftp://http://127.0.0.1:7890/"
export RSYNC_PROXY="rsync://http://127.0.0.1:7890/"
export NO_PROXY="localhost,127.0.0.1,192.168.1.1,::1,*.local"
export https_proxy="http://127.0.0.1:7890/"
export HTTPS_PROXY="http://127.0.0.1:7890/"

Shell proxy settings : /root/.zshrc
export http_proxy="http://http://127.0.0.1:7890/"
export ftp_proxy="ftp://http://127.0.0.1:7890/"
export rsync_proxy="rsync://http://127.0.0.1:7890/"
export no_proxy="localhost,127.0.0.1,192.168.1.1,::1,*.local"
export HTTP_PROXY="http://http://127.0.0.1:7890/"
export FTP_PROXY="ftp://http://127.0.0.1:7890/"
export RSYNC_PROXY="rsync://http://127.0.0.1:7890/"
export NO_PROXY="localhost,127.0.0.1,192.168.1.1,::1,*.local"
export https_proxy="http://127.0.0.1:7890/"
export HTTPS_PROXY="http://127.0.0.1:7890/"

Desktop proxy settings (GNOME)
No schemas installed
No schemas installed
No schemas installed
http
No schemas installed
No schemas installed
No schemas installed
Auth
No schemas installed
No schemas installed
https
No schemas installed
No schemas installed
ftp
No schemas installed
No schemas installed
socks
No schemas installed
no_proxy

git proxy settings :
http http://http://127.0.0.1:7890/
https https://http://127.0.0.1:7890/

APT proxy settings :
3
Done
```

Start by running `proxyman list` in an environment matching the report and trace how shell, desktop, Git, and APT proxy settings are collected. Determine which output section produces duplicated URL schemes or unexpected messages; done means the command reports each detected proxy setting accurately without malformed values.

Written by the indexing model from the issue text.