Add landing page, Docker setup, and CI/CD pipeline

React + Vite + TypeScript + Tailwind frontend with landing page,
Docker Compose for dev and prod (nginx-proxy integration),
and Gitea Actions workflow for automated deployment.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

docker-compose.prod.yml

@@ -0,0 +1,24 @@
+services:
+  frontend:
+    build:
+      context: ./frontend
+      dockerfile: Dockerfile.prod
+    container_name: wealthysmart-frontend-prod
+    restart: unless-stopped
+    environment:
+      VIRTUAL_HOST: wealthy.cescalante.dev
+      LETSENCRYPT_HOST: wealthy.cescalante.dev
+      LETSENCRYPT_EMAIL: ${LETSENCRYPT_EMAIL}
+    expose:
+      - "80"
+    networks:
+      - nginx-prod-network
+    healthcheck:
+      test: ["CMD", "wget", "--quiet", "--tries=1", "--spider", "http://127.0.0.1/"]
+      interval: 30s
+      timeout: 10s
+      retries: 3
+
+networks:
+  nginx-prod-network:
+    external: true