build: Add Dockerfile and dockerignore

.dockerignore

@@ -0,0 +1,12 @@
+.git
+.gitignore
+.env
+.env.example
+.air.toml
+main
+tmp/
+build-errors.log
+README.md
+todo.txt
+Dockerfile
+.dockerignore

Dockerfile

@@ -0,0 +1,20 @@
+# syntax=docker/dockerfile:1
+
+FROM golang:1.24-alpine AS build
+WORKDIR /app
+
+COPY go.mod go.sum ./
+RUN go mod download
+
+COPY . .
+RUN CGO_ENABLED=0 GOOS=linux go build -o /app/bin/server ./cmd
+
+FROM alpine:3.23
+RUN apk add --no-cache ca-certificates
+WORKDIR /app
+
+COPY --from=build /app/bin/server ./server
+COPY --from=build /app/ui ./ui
+
+EXPOSE 8080
+ENTRYPOINT ["./server"]