feat: speedtest 网速测试服务（Go+Gin+SQLite，延迟/下载/上传 + 排行榜）

config/defaults.go

@@ -0,0 +1,32 @@
+package config
+
+// Linux path prefixes
+const (
+	LinuxEtcDir  = "/etc/speedtest/"
+	LinuxBaseDir = "/srv/speedtest/"
+)
+
+// Windows path prefixes（本地调试用）
+const (
+	WinEtcDir  = "./win/etc/speedtest/"
+	WinBaseDir = "./win/srv/speedtest/"
+)
+
+// Default database settings
+const (
+	DefaultDBDriver = "sqlite"
+	DefaultDSNLinux = "/srv/speedtest/speedtest.db"
+	DefaultDSNWin   = "./win/srv/speedtest/speedtest.db"
+)
+
+// Default web listen address（unix socket，由 Caddy 反代）
+const DefaultWebAddr = "/opt/speedtest/web.sock"
+
+// Default speedtest limits（字节）
+const (
+	DefaultMaxDownloadBytes = 100 * 1024 * 1024 // 100 MB
+	DefaultMaxUploadBytes   = 100 * 1024 * 1024 // 100 MB
+)
+
+// ConfigFileName is the name of the configuration file
+const ConfigFileName = "speedtest.toml"