Upgrade ESLint 9 to 10

[smartlabsAT]

Description

ESLint 10 is available.

Packages to update

• eslint: ^9.39.2 -> 10.1.0
• @eslint/js: ^9.39.2 -> 10.0.1
• eslint-plugin-react: ^7.37.5 -> verify compatibility
• typescript-eslint: ^8.54.0 -> verify compatibility

Breaking Changes to investigate

• New/removed rules
• Config format changes
• Plugin compatibility

Tasks

• Read ESLint 10 migration guide
• Update eslint and @eslint/js
• Update config if needed
• Verify lint passes (pnpm lint)