feat: initialize frontend with React, Vite, and Tailwind CSS

- Added package.json for project dependencies and scripts.
- Configured PostCSS with Tailwind CSS.
- Created main application structure with App component and routing.
- Implemented API client for handling requests with Axios.
- Developed authentication API for login, logout, and user verification.
- Created entities API for managing virtual entities.
- Implemented logs API for fetching dispatch logs.
- Added navigation bar component for app navigation.
- Created protected route component for route guarding.
- Set up global CSS with Tailwind directives.
- Configured main entry point for React application.
- Developed basic Dashboard and Login pages.
- Set up router for application navigation.
- Added Jest testing setup for testing library.
- Configured Tailwind CSS with content paths.
- Set TypeScript configuration for frontend.
- Created Vite configuration for development and production builds.
- Added Nginx configuration for serving the application and proxying API requests.

frontend/Dockerfile

@@ -0,0 +1,14 @@
+# ── Stage 1: Build ───────────────────────────────────────────────────────────
+FROM node:20-alpine AS build
+WORKDIR /app
+COPY package.json package-lock.json* ./
+RUN npm ci
+COPY . .
+RUN npm run build
+
+# ── Stage 2: Serve with Nginx ─────────────────────────────────────────────────
+FROM nginx:alpine AS runtime
+COPY --from=build /app/dist /usr/share/nginx/html
+COPY nginx.docker.conf /etc/nginx/conf.d/default.conf
+EXPOSE 80
+CMD ["nginx", "-g", "daemon off;"]