With devtools mounted, a pointermove listener on document can see event.currentTarget === <html> instead of document. This breaks react-resizable-panels' hover cursor after a remount. This PR makes the trigger listen to pointermove on its buttons directly, so Solid no longer installs a delegated pointermove handler on document.

🎯 Changes

• Solid delegates onPointerMove to one document listener. That handler redefines event.currentTarget with a getter and does not restore it (solid-js 1.9.15 still does this).
• Each pointermove listener on document that runs after Solid's handler sees <html>. react-resizable-panels reads currentTarget.defaultView, gets undefined, and skips the cursor.
• The trigger's two pointermove handlers now use on:pointermove, a native listener on the <button>. No other devtools code delegates pointermove.
• The root cause is in Solid's eventHandler. This PR removes the devtools' part of it.

✅ Checklist

• I have followed the steps in the Contributing guide.
• I have tested code changes locally with pnpm test:pr, or these tests do not apply to this pull request.
• I fully understand the code in this pull request, including any code generated with AI assistance.

🚀 Release Impact

• This change affects published code, and I have generated a changeset.
• This change is docs/CI/dev-only (no release).

Testing

Commands run

• vitest run in packages/devtools: 371 tests pass, with the existing trigger drag tests that fire pointermove.
• The new test fails without the fix: expected <html>… to be #document.
• eslint, tsc, and prettier --check in packages/devtools: pass.
• I did not run the full pnpm test:pr.

Manual test

1. Open the StackBlitz repro in Devtools breaks react-resizable-panels cursor after remount #526.
2. Before this fix: wait for devtools to load, change the Group key, and hover the separator. The cursor stays auto.
3. After this fix: the cursor is ew-resize after the remount.
4. Drag the floating trigger and the docked edge tab. Both still move with the pointer.

How this PR makes testing easy

A test in trigger.test.tsx adds a document pointermove listener after the trigger renders and expects currentTarget to be document.

Linked issues

Fixes #526

Risk / rollback

Low. The handlers run on the same buttons, and pointer capture still sends moves to them. Plugins that use Solid's onPointerMove still install the delegated handler. To undo, revert this PR.

🤖 Generated with Claude Code