chore: prepare repository for publishing

Dockerfile

@@ -0,0 +1,23 @@
+FROM golang:1.22-alpine AS backend-builder
+WORKDIR /app
+COPY go.mod go.sum ./
+RUN go mod download
+COPY . .
+RUN go build -o bin/server ./cmd/server
+
+FROM node:20-alpine AS frontend-builder
+WORKDIR /app
+COPY frontend/package.json frontend/package-lock.json ./
+RUN npm ci
+COPY frontend/ ./
+RUN npm run build
+
+FROM alpine:3.19 AS runner
+RUN apk add --no-cache ca-certificates postgresql-client
+WORKDIR /app
+COPY --from=backend-builder /app/bin/server ./
+COPY --from=frontend-builder /app/dist ./frontend/dist
+COPY db/migrations ./db/migrations
+COPY scripts ./scripts
+EXPOSE 8080
+CMD ["./server"]