Fix wayland image paste error

[MasterMind7777777]

Summary

• log and surface clipboard failures instead of silently ignoring them when Ctrl+V pastes an image (paste_image_to_temp_png() now feeds an error history cell)
• enable arboard’s wayland-data-control feature so native Wayland sessions can deliver image data without XWayland
• keep the success path unchanged: valid images still attach and show the [image …] placeholder as before

Fixes #4818

[github-actions]

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[MasterMind7777777]

I have read the CLA Document and I hereby sign the CLA

[MasterMind7777777]

rebased to new main

[UN-9BOT]

up!

[etraut-openai]

Thanks for the contribution, and apologies for the slow reply. We received many PRs, and we're just now catching up on the backlog.

I took a quick look at your PR. The code change in chatwidget.rs looks reasonable to me, but I don't understand why it includes changes to the Cargo.lock or Cargo.toml files. Please simplify the change.

[etraut-openai]

codex review

[MasterMind7777777]

Change to Cargo.toml is most important, that is what actually fixes issue that paste image does not work on Wayland, it does not work because dependency(feature) that handles Wayland specific clipboard was not included before.

Change in chatwidget.rs only logs error if something else breaks in image pasting, so in future it would be easier to debug. It does not actually fix anything.

All that needs to be done to be able to do paste image on Wayland is
wayland-data-control feature need to be enabled for lib arboard in Cargo.toml

[etraut-openai]

Thanks for the explanation. I didn't previously understand that wayland-data-control was an optional feature in arboard. Makes sense now.