ops: add dockerfile, makefile and cli tools

Dockerfile

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+FROM golang:1.22-bullseye AS builder
+
+WORKDIR /app
+
+# Enable CGO for sqlite3
+ENV CGO_ENABLED=1
+
+COPY go.mod go.sum ./
+RUN go mod download
+
+COPY . .
+
+# Build the server and the CLI tools
+RUN go build -o main_server ./cmd/server
+RUN go build -o create_user ./cmd/create-user
+
+FROM debian:bullseye-slim
+
+WORKDIR /app
+
+# Required for sqlite
+RUN apt-get update && apt-get install -y ca-certificates && rm -rf /var/lib/apt/lists/*
+
+COPY --from=builder /app/main_server .
+COPY --from=builder /app/create_user .
+COPY --from=builder /app/static ./static
+COPY --from=builder /app/migrations ./migrations
+
+# Expose the application port
+EXPOSE 3000
+
+# Run the server
+CMD ["./main_server"]