clipboard.write() silently reports success even when copy fails on Linux

[RajdeepSaiPutta]

Problem Description

In Linux, clipboard.write() can report success silently despite there being no clipboard utility at all.

Causes of the problem

1. The actual method used for writing into clipboard throws an exception which is silenced with .catch(() => undefined) (for osascript, wl-copy, xclip, xsel or clipboardy)
2. OSC52 fails silently if stdout is not a TTY
3. There is no verification — write() returns Promise<void>

Desired Solution

The calling code should get some indication of whether copying has happened or not.
Failed copy methods should not be silently ignored.
Copying through OSC52 should not silently fail.

Environment where the problem occurs

• Linux (doesn't depend on particular distribution)
• Terminal that doesn't have OSC52 functionality and/or has no clipboard utilities

[github-actions]

This issue might be a duplicate of existing issues. Please check:

• Copy shows copied popup but clipboard remains unchanged on Linux terminal #24713: Copy shows "copied" popup but clipboard remains unchanged on Linux — same symptom of silent failure on Linux clipboard write
• Clipboard text paste silently fails on Wayland without xsel/xclip #29880: Clipboard text paste silently fails on Wayland without xsel/xclip — same root cause (errors swallowed via .catch(() => {}))
• Clipboard copy not working on Ubuntu 24.04 (GNOME Terminal) #29834: Clipboard copy not working on Ubuntu 24.04 (GNOME Terminal) — same underlying clipboard write failure on Linux

If your issue is distinct or adds a new angle (e.g. the specific fix you're proposing around Promise<void> return type and verification), please clarify how it differs from the above.