Treat pen pointers as touch and prevent browser gestures for block touches

[flooryyyy]

Motivation

• Support pointer devices that behave like touch (e.g. stylus/pen) so touch gestures work for more pointer types.
• Ensure React Flow node interactions (drag/resize) on touch-like devices aren't intercepted by the browser's gesture handling.
• Broaden pointer filtering to avoid ignoring valid touch-like input while keeping non-touch pointers out of touch handlers.

Description

• Added TOUCH_LIKE_POINTER_TYPES and isTouchLikePointer to treat "touch" and "pen" as touch-like pointer types.
• Replaced direct event.pointerType === "touch" checks with isTouchLikePointer in onPointerDownCapture, onPointerMoveCapture, and endTrackedTouch.
• When a touch on a non-pane block intent is detected, call event.preventDefault() to stop the browser from claiming scroll/zoom gestures so node drag/resize works.
• Updated callback dependency arrays to include isTouchLikePointer where appropriate.

Testing

• Ran the unit test suite with yarn test, and all tests passed.
• Ran TypeScript type checks with tsc --noEmit, and no type errors were reported.
• Ran the app locally to validate touch and pen interactions on a device/emulator, and gestures behaved as expected.

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Codex Task