Add Docker deployment for Dokploy (nginx static serve)

Dockerfile

@@ -0,0 +1,26 @@
+# ---- Build stage ----
+FROM node:22-alpine AS build
+WORKDIR /app
+
+# Install dependencies against the lockfile for reproducible builds
+COPY package.json package-lock.json ./
+RUN npm ci
+
+# Build the static site (tsc -b && vite build -> /app/dist)
+COPY . .
+RUN npm run build
+
+# ---- Serve stage ----
+FROM nginx:1.27-alpine AS runtime
+
+# SPA-aware nginx config (history fallback + asset caching)
+COPY nginx.conf /etc/nginx/conf.d/default.conf
+
+# Static output from the build stage
+COPY --from=build /app/dist /usr/share/nginx/html
+
+EXPOSE 80
+HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
+  CMD wget -qO- http://localhost/ >/dev/null 2>&1 || exit 1
+
+CMD ["nginx", "-g", "daemon off;"]