🎨 优化dockerfile，优化路由匹配

Dockerfile

@@ -17,7 +17,13 @@ COPY web/ ./
 RUN npm run build
 
 # 阶段2: 构建后端
-FROM golang:1.21-alpine as backend-builder
+FROM golang:1.23-alpine as backend-builder
+
+# 设置环境变量允许 Go 自动下载工具链
+ENV GO111MODULE=on \
+    GOPROXY=https://goproxy.cn,direct \
+    CGO_ENABLED=0 \
+    GOTOOLCHAIN=auto
 
 WORKDIR /app/server
 
@@ -25,10 +31,7 @@ WORKDIR /app/server
 COPY server/go.mod server/go.sum ./
 
 # 下载依赖
-RUN go env -w GO111MODULE=on \
-    && go env -w GOPROXY=https://goproxy.cn,direct \
-    && go env -w CGO_ENABLED=0 \
-    && go mod download
+RUN go mod download
 
 # 复制后端源码
 COPY server/ ./