Added docker file

Dockerfile

@@ -0,0 +1,40 @@
+# Build stage
+FROM golang:1.25-alpine AS builder
+
+WORKDIR /app
+
+# Copy go mod files
+COPY go.mod go.sum ./
+RUN go mod download
+
+# Install the build dependencies
+RUN apk update && \
+    apk add nodejs npm make gcc libc-dev
+
+# Copy source code
+COPY . .
+
+# Build the frontend
+RUN make frontend
+
+# Build the application
+RUN CGO_ENABLED=1 GOOS=linux go build -o weiro .
+
+# Runtime stage
+FROM alpine:latest
+
+RUN apk --no-cache add ca-certificates
+RUN mkdir -p /data
+
+WORKDIR /root/
+
+# Copy the binary from builder
+COPY --from=builder /app/weiro .
+COPY --from=builder /app/static ./static
+COPY --from=builder /app/views ./views
+
+ENV DATA_DIR=/data
+
+EXPOSE 3000
+
+CMD ["./weiro"]