Add Docker setup

Dockerfile

@@ -0,0 +1,27 @@
+FROM oven/bun:1.4 AS build
+WORKDIR /app
+
+COPY package.json bun.lock* ./
+RUN bun install
+
+COPY . .
+RUN bun --bun vite build
+
+FROM oven/bun:1.4 AS runtime
+WORKDIR /app
+
+RUN apt-get update \
+	&& apt-get install -y --no-install-recommends ffmpeg \
+	&& rm -rf /var/lib/apt/lists/*
+
+COPY package.json bun.lock* ./
+RUN bun install --production --ignore-scripts
+
+COPY --from=build /app/build ./build
+
+ENV NODE_ENV=production
+ENV PORT=3000
+EXPOSE 3000
+
+USER bun
+CMD ["bun", "./build/index.js"]