chore: 初始化仓库基线（AGENTS.md、git 规范、敏感文件排除）

server-go/internal/middleware/logger.go

@@ -0,0 +1,29 @@
+package middleware
+
+import (
+	"log/slog"
+	"time"
+
+	"github.com/gin-gonic/gin"
+)
+
+// Logger 请求日志中间件，记录方法、路径、状态码、耗时
+func Logger() gin.HandlerFunc {
+	return func(c *gin.Context) {
+		start := time.Now()
+		path := c.Request.URL.Path
+
+		c.Next()
+
+		latency := time.Since(start)
+		status := c.Writer.Status()
+
+		slog.Info("请求",
+			"method", c.Request.Method,
+			"path", path,
+			"status", status,
+			"latency", latency.String(),
+			"ip", c.ClientIP(),
+		)
+	}
+}