Add Dockerfile (#13)

Reviewed-on: https://gitea.com/gitea/gitea-mcp/pulls/13
Co-authored-by: hiifong <f@ilo.nz>
Co-committed-by: hiifong <f@ilo.nz>

Dockerfile

@@ -0,0 +1,18 @@
+FROM golang:1.24-alpine AS builder
+
+ARG VERSION
+
+WORKDIR /build
+
+COPY . .
+RUN go mod download
+
+RUN CGO_ENABLED=0 go build -ldflags="-s -w -X main.version=${VERSION}" -o gitea-mcp
+
+FROM scratch
+
+WORKDIR /app
+
+COPY --from=builder /build/gitea-mcp .
+
+CMD ["./gitea-mcp", "-t", "stdio"]