security: update React/Next.js to patch CVE-2025-55182 (CVSS 10.0)

- Updated Next.js from 15.4.8 to 15.4.10
- Updated React from 19.1.0 to 19.1.4
- Updated React-DOM from 19.1.0 to 19.1.4

Addresses critical RCE vulnerability in React Server Components.
CVE-2025-55182 is actively exploited in the wild.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: SpacePlushy