add docker and use route grouping for API routes

Dockerfile

@@ -0,0 +1,20 @@
+FROM --platform=$BUILDPLATFORM golang:alpine AS build
+
+ARG TARGETARCH
+
+WORKDIR /src
+RUN apk --no-cache add git ca-certificates
+COPY . .
+
+RUN go mod download
+RUN GOOS=linux GOARCH=$TARGETARCH go build -o /src/mozhi
+
+FROM alpine:3.16 as bin
+
+WORKDIR /app
+COPY --from=build /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs
+COPY --from=build /src/mozhi .
+
+EXPOSE 3000
+
+CMD ["/app/mozhi", "serve"]