feat: Implement dark mode support across all tools and components.

feat: Add millisecond Unix timestamp display to TimestampTool and introduce CLAUDE.md for AI guidance.

ci: migrate deployment workflow from npm to Bun.

feat: Replace Prism.js with Monaco Editor and add related dependencies.

Merge branch 'main' of github.com:xi-mad/devtool-station

feat: Add hover functionality to Navbar category dropdowns and migrate project to Bun package manager.

feat: Reimplement `CodeEditor` using Monaco Editor and integrate it into `TextInspector` for enhanced text input.

feat: Add line number display to the CodeEditor component.

refactor: Replaced `prismjs` with `react-syntax-highlighter` in `CodeEditor` for improved syntax highlighting, added ref methods for scroll/selection control utilized by `JsonFormatter`, and applied UI adjustments to `DiffViewer`.

feat: Add character limit and UI feedback for QR code content in generator and quick preview.

feat: improve CodeEditor focus styling by moving the focus ring to the parent container and adding border radius inheritance to the textarea.

feat: Introduce `CodeEditor` component with Prism.js for syntax highlighting, replacing textareas in DiffViewer, JsonFormatter, and SqlFormatter.

feat: Add remove newlines, add escape, and remove escape functionalities to the JSON formatter.

feat: introduce i18n infrastructure and translate existing tools with English and Chinese locales

refactor: remove unused Lucide icons and useCallback hook