fix port 7860

Dockerfile

@@ -1,4 +1,4 @@
-FROM golang:1.25-alpine AS builder
+FROM golang:1.23-alpine AS builder
 
 WORKDIR /app
 
@@ -23,6 +23,7 @@ COPY --from=builder /app/zai-proxy .
 # proxies.txt 可通过 docker run -v ./proxies.txt:/app/proxies.txt 挂载
 VOLUME ["/app/proxies.txt"]
 
-EXPOSE 8000
+EXPOSE 7860
 
+ENV PORT=7860
 CMD ["./zai-proxy"]