fix(options): fix connection options

[arntanguy]

• mc_rtc::imgui::Client always attempt to connect to ipc in its default
  constructor
• --use-tcp was always used

[arntanguy]

@Mergifyio queue

[mergify]

Merge Queue Status

• ✅ Entered queue — 2026-04-17 13:25 UTC · Rule: default
• ✅ Checks skipped · PR is already up-to-date
• ✅ Merged — 2026-04-17 13:25 UTC · at 72ad992567a498ee98b4118a5a50a039cf5b52f6

This pull request spent 17 seconds in the queue, including 2 seconds running CI.

Required conditions to merge

[arntanguy]

@Mergifyio backport main

[mergify]

backport main

⚠️ Cannot use the command backport main

Details

⚠ The product Workflow Automation needs to be activated to enable this feature.

[arntanguy]

@Mergifyio backport main

[mergify]

backport main

✅ Backports have been created

Details

• #11 fix(options): fix connection options (backport #10) has been created for branch main but encountered conflicts

Cherry-pick of 72ad992 has failed:

On branch mergify/bp/main/pr-10
Your branch is up to date with 'origin/main'.

You are currently cherry-picking commit 72ad992.
  (fix conflicts and run "git cherry-pick --continue")
  (use "git cherry-pick --skip" to skip this patch)
  (use "git cherry-pick --abort" to cancel the cherry-pick operation)

Changes to be committed:
	modified:   flake.nix
	modified:   src/MagnumClient.cpp
	modified:   src/MagnumClient.h
	modified:   src/McRtcGui.cpp
	modified:   src/McRtcGui.h

Unmerged paths:
  (use "git add <file>..." to mark resolution)
	both modified:   flake.lock

To fix up this pull request, you can check it out locally. See documentation: https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/reviewing-changes-in-pull-requests/checking-out-pull-requests-locally