Fix right-click mouse support for Neovim 0.12+

[Copilot]

In Neovim 0.12+, mouse events cannot be replayed via normal! — calling exe "normal! \<LeftRelease>" inside s:RightRelease caused an E492 error that aborted function execution, breaking all right-click navigation.

Changes

• s:MousePress: Replace exe "normal! \<LeftMouse>" with an explicit wincmd w + cursor() call using the getmousepos() data already stored in s:click. Neovim's getmousepos().column is 1-based, matching cursor()'s convention.

• s:MiddleRelease / s:RightRelease: Guard exe "normal! \<LeftRelease>" with !has('nvim'). In Neovim, cursor position is already correct from the press handler; drag-based visual selection is covered by the existing <RightDrag> → <LeftDrag> remap.

" s:MousePress — was: exe "normal! \<LeftMouse>"
if has('nvim')
    exe win_id2win(s:click.winid).'wincmd w'
    call cursor(s:click.line, s:click.column)
else
    exe "normal! \<LeftMouse>"
endif

" s:RightRelease / s:MiddleRelease — was: exe "normal! \<LeftRelease>"
if !has('nvim')
    exe "normal! \<LeftRelease>"
endif

Vim behavior is unchanged.

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

• neovim.io
  • Triggering command: /home/REDACTED/work/_temp/ghcca-node/node/bin/node /home/REDACTED/work/_temp/ghcca-node/node/bin/node --enable-source-maps /home/REDACTED/work/_temp/copilot-developer-action-main/dist/index.js (dns block)

If you need me to access, download, or install something from one of these locations, you can either:

• Configure Actions setup steps to set up my environment, which run before the firewall is enabled
• Add the appropriate URLs or hosts to the custom allowlist in this repository's Copilot coding agent settings (admins only)

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