feat: initial project setup with frontend mockup

- Docker Compose setup with nginx reverse proxy and frontend service
- React + Vite + Tailwind CSS configuration
- Complete mockup of all application views:
  - Authentication (login/register)
  - Events list and selection
  - Event chat with matchmaking
  - 1:1 private chat with WebRTC P2P video transfer mockup
  - Partner rating system
  - Collaboration history
- Mock data for users, events, messages, matches, and ratings
- All UI text and messages in English
- Project documentation (CONTEXT.md, TODO.md, README.md, QUICKSTART.md)

frontend/README.md

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+# React + Vite
+
+This template provides a minimal setup to get React working in Vite with HMR and some ESLint rules.
+
+Currently, two official plugins are available:
+
+- [@vitejs/plugin-react](https://github.com/vitejs/vite-plugin-react/blob/main/packages/plugin-react) uses [Babel](https://babeljs.io/) (or [oxc](https://oxc.rs) when used in [rolldown-vite](https://vite.dev/guide/rolldown)) for Fast Refresh
+- [@vitejs/plugin-react-swc](https://github.com/vitejs/vite-plugin-react/blob/main/packages/plugin-react-swc) uses [SWC](https://swc.rs/) for Fast Refresh
+
+## React Compiler
+
+The React Compiler is not enabled on this template because of its impact on dev & build performances. To add it, see [this documentation](https://react.dev/learn/react-compiler/installation).
+
+## Expanding the ESLint configuration
+
+If you are developing a production application, we recommend using TypeScript with type-aware lint rules enabled. Check out the [TS template](https://github.com/vitejs/vite/tree/main/packages/create-vite/template-react-ts) for information on how to integrate TypeScript and [`typescript-eslint`](https://typescript-eslint.io) in your project.