fix: submit the argument to opencode --prompt commands (resolves #4700)

[ariane-emory]

Resolves #4700.

Submit the argument following opencode --prompt in order to resolve this issue.

[ariane-emory]

Ohhhhh... I see that the format action is the one adding the trailing whitespace on package.json files. I'll stop trying to 'fix' (air quotes) it.

[rekram1-node]

This looks good but can we fix the double render? The screen flashes twice

[ariane-emory]

Huh, I don't think I've seen that myself but I can definitely take a closer look! I'll redraft it for now and undraft it again once I've addressed this issue.

[rekram1-node]

@ariane-emory ill send a video

[rekram1-node]

Screen.Recording.2025-11-28.at.4.19.01.PM.mov

notice once the prompt is submitted it flashes

[ariane-emory]

Is this in Zed? I'm not 100% certain. Maybe it isn't as visible in iTerm2, but I should be able to grab whichever editor this is this evening and try to figure out enough about it to try replicating.

[rekram1-node]

It was in Zed (which uses alacritty) but I get same behavior in my other terminals too like ghostty

[ariane-emory]

Re-rolled the fix.

In this re-roll, a brief delay avoids the flashing defect.

[rekram1-node]

settimeout is such a hack :/

[ariane-emory]

Best I've managed to get out of my robots so far. I can keep playing with it if ya like though.

[ariane-emory]

Reverting to draft status until I can figure out a way to do this without either the unwanted TUI flashing defect or use of setTimeout.