feat: Prism HTTP/SOCKS5 代理网关及管理台

Co-authored-by: Cursor <cursoragent@cursor.com>

internal/core/home.go

@@ -0,0 +1,10 @@
+package core
+
+import (
+	"github.com/prism/proxy/internal/geodata"
+)
+
+// InitDataDir points Mihomo geodata/cache paths at dataDir/geo.
+func InitDataDir(dataDir string) string {
+	return geodata.InitHomeDir(dataDir)
+}