feat(git): support custom commit flags for app-run commits

[0xnim]

Related to #274.

What Changed

• Added support for passing extra git commit flags
• Added a Settings field for app run git commit flags, so users can configure flags like --no-gpg-sign

Why

T3 Code runs git commit non-interactively. On a machine with global commit.gpgsign=true, commits can fail because GPG prompts for a pass on /dev/tty, which does not exist in this case.

This PR does NOT add interactive GPG/password support. Instead its a small workaround fix, users can configure extra commit flags for app run commits, which makes setups like --no-gpg-sign possible without changing their global git config

UI Changes

Adds a new Settings field under Git for extra git commit flags

Before	After

Checklist

• This PR is small and focused
• I explained what changed and why
• I included before/after screenshots for any UI changes
• I included a video for animation/interaction changes

Note

Add custom git commit flags support for app-run commits

• Adds a gitCommitFlags field to app settings (max 4096 chars), configurable via a new 'Extra git commit flags' input in the Git settings UI.
• GitCore.commit accepts an optional extraArgs array inserted before the -m flag in the git command.
• runCommitStep tokenizes the raw commitFlags string and forwards the result to GitCore.commit; the full path from UI → mutation → API → git command is wired end-to-end.
• Behavioral Change: commits triggered via runStackedAction now include user-configured flags if set; with no flags configured, behavior is unchanged.

^{Macroscope summarized 5a57ada.}

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[0xnim]

The worker errors seem to be pre existing

[juliusmarminge]

The worker errors seem to be pre existing

it's flaky right now but it keeps failing on this branch...

also can you resolve conflicts pls. i am unable to push since you PRd from main:

[0xnim]

Apologies, I never realized that was the reason you don't pr from main. I'll do it now.