Add unified Dockerfile with build targets

Dockerfile.all

@@ -0,0 +1,31 @@
+# ========== API Build ==========
+FROM oven/bun:1 as api-builder
+WORKDIR /app
+COPY . .
+WORKDIR /app/apps/api
+RUN bun install --frozen-lockfile
+
+FROM oven/bun:1-slim as api
+WORKDIR /app
+COPY --from=api-builder /app/apps/api/node_modules ./node_modules
+COPY --from=api-builder /app/apps/api/package.json ./
+COPY --from=api-builder /app/apps/api/src ./src
+COPY --from=api-builder /app/apps/api/drizzle.config.ts ./
+ENV NODE_ENV=production
+ENV PORT=3001
+EXPOSE 3001
+CMD ["sh", "-c", "bun run db:push && bun run start"]
+
+# ========== Web Build ==========
+FROM oven/bun:1 as web-builder
+WORKDIR /app
+COPY . .
+WORKDIR /app/apps/web
+RUN bun install
+RUN bun run build
+
+FROM nginx:alpine as web
+COPY --from=web-builder /app/apps/web/dist /usr/share/nginx/html
+COPY --from=web-builder /app/apps/web/nginx.conf /etc/nginx/conf.d/default.conf
+EXPOSE 80
+CMD ["nginx", "-g", "daemon off;"]