add docker stuff

Dockerfile

@@ -0,0 +1,17 @@
+FROM docker.io/golang:1.24.4-alpine3.22 as compiled
+
+WORKDIR /tmp/src 
+
+# Copy the source code into the temp folder.
+COPY . /tmp/src
+
+RUN go build -v -o /tmp/src/backend
+
+FROM alpine:latest AS run 
+
+COPY --from=compiled /tmp/src/backend /usr/bin/backend
+
+WORKDIR /app
+
+ENV GIN_MODE=release
+CMD ["/usr/bin/backend"]

compose.yaml

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+services:
+  seaweedfs:
+    container_name: seaweedfs
+    image: docker.io/chrislusf/seaweedfs 
+    command: server -dir=/data
+    volume:
+      ./tmp:/data
+    ports:
+      - 9333:9333
+  shell:
+    image: docker.io/alpine:latest
+    command: sh -c 'sleep 100000'