Support CDP-level mouse events for React SPA compatibility

[LeonTing1010]

Problem

The xiaohongshu publish command (and potentially other UI automation commands) fails to trigger React event handlers when using JavaScript dispatchEvent() for clicks. This affects:

1. Tab switching — .creator-tab elements don't respond to el.click()
2. Publish/Submit buttons — React form submission buttons don't fire
3. Draft box interactions — Modal open/close and item selection fail

Root cause

React uses a synthetic event system that listens on the document root, not individual DOM nodes. Standard el.click() and even new MouseEvent('click', ...) dispatched via JS don't always propagate through React's event delegation layer.

Current workaround (partial)

Using full pointer/mouse event sequences helps with some elements:

btn.dispatchEvent(new PointerEvent('pointerdown', opts));
btn.dispatchEvent(new MouseEvent('mousedown', opts));
btn.dispatchEvent(new PointerEvent('pointerup', opts));
btn.dispatchEvent(new MouseEvent('mouseup', opts));
btn.dispatchEvent(new MouseEvent('click', opts));

This fixed the tab switching but still doesn't work reliably for submit buttons and modal interactions.

Proposed solution

Add CDP-level Input.dispatchMouseEvent support to the page.click() method. This dispatches events at the browser engine level (not JS), which React treats identically to real user input.

// Instead of JS-level:
el.click();

// Use CDP-level:
await cdp.send('Input.dispatchMouseEvent', {
  type: 'mousePressed', x, y, button: 'left', clickCount: 1
});
await cdp.send('Input.dispatchMouseEvent', {
  type: 'mouseReleased', x, y, button: 'left', clickCount: 1
});

Benefits

• Works with React, Vue, Angular, and all SPA frameworks
• Identical to real user mouse clicks
• Already available in the CDP connection that opencli maintains

Environment

• opencli v1.4.1
• macOS, Chrome with Browser Bridge extension
• Affected site: creator.xiaohongshu.com (React SPA)

Additional context

Other [ui] strategy commands on React/Vue SPAs may have similar issues. A CDP click would be a universal fix.