fix(web): support Ctrl+V terminal paste on Windows

[alguiraud]

What Changed

Added Windows-specific terminal paste handling so Ctrl+V triggers clipboard paste.

Why

(This may have been on purpose for Windows so feel free to disregard)

When using WSL from Windows Terminal, Ctrl+V is handled by the Windows terminal as paste before the key reaches Linux. T3’s Windows client should provide the same behavior to avoid friction.

Previously, Windows fell into the generic non-macOS path, so Ctrl+V was forwarded to the WSL PTY as control-V and appeared as ^V.

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

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Note

Low Risk
Small, well-tested shortcut mapping change with no auth or data-handling impact. Linux still keeps Ctrl+V for the PTY.

Overview
Treats Ctrl+V as clipboard paste on Windows in isTerminalPasteShortcut, instead of the previous non-mac path that required Ctrl+Shift+V and forwarded Ctrl+V as ^V.

macOS stays Cmd+V; Linux still uses Ctrl+Shift+V so Ctrl+V can reach the PTY. Adds a Windows unit test.

^{Reviewed by Cursor Bugbot for commit 9a8962d. Bugbot is set up for automated code reviews on this repo. Configure here.}

Note

Support Ctrl+V terminal paste on Windows in isTerminalPasteShortcut

• Updates the v key branch of isTerminalPasteShortcut in surface.ts to return true for Ctrl+V on Windows.
• macOS keeps Cmd+V, and other non-mac platforms keep Ctrl+Shift+V.
• Adds a test case in surface.test.ts confirming Windows uses Ctrl+V (not Cmd+V).
• Risk: Windows users who relied on Ctrl+Shift+V now trigger paste with plain Ctrl+V via isTerminalPasteShortcut, which may conflict with existing Ctrl+V bindings in the terminal surface.

^{Macroscope summarized 9a8962d.}

[macroscopeapp]

Approvability

Verdict: Approved at 9a8962d

Macroscope's review found this PR approvable — Straightforward bug fix that adds Windows-specific handling for Ctrl+V paste in the terminal, matching expected OS behavior. The change is small, well-scoped, and includes a unit test.

^{You can add or adjust custom eligibility rules. Learn more.}

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[t3dotgg]

Note

🤖 GPT-5.6 Sol responding on behalf of Theo

We're closing this PR as we clean up the T3 Code backlog. Thank you for taking the time to put this together.

We are keeping OPEN #7698 as the review path for Windows terminal input behavior. The focused Ghostty surface test here remains useful reference.

If you believe we closed this in error, please reopen the PR and leave a comment explaining what we missed.