feat: initialize frontend with React and Vite setup

- Add main application structure with App component
- Implement state management for counter functionality
- Create CSS styles for application layout and components
- Include assets for logos and hero image
- Set up Vite configuration for development environment
- Establish global CSS variables for theming

.gitignore

@@ -0,0 +1,50 @@
+# --- GLOBAL ---
+.env
+*.env
+.env.*
+!.env.example
+
+# --- PYTHON BACKEND ---
+__pycache__/
+*.pyc
+*.pyo
+*.pyd
+*.sqlite3
+*.db
+*.log
+
+# Virtual environments
+venv/
+.venv/
+env/
+ENV/
+
+# FastAPI / Uvicorn
+*.pid
+
+# --- NODE FRONTEND ---
+node_modules/
+dist/
+build/
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+pnpm-debug.log*
+
+# Vite cache
+.vite/
+vite.config.ts.timestamp*
+vite.config.js.timestamp*
+
+# --- DOCKER ---
+# Avoid local volumes or generated files
+docker-data/
+postgres_data/
+redis_data/
+
+# --- OS / EDITOR ---
+.DS_Store
+Thumbs.db
+.idea/
+.vscode/
+*.swp