Delete internal directory

internal/handler/terminal_ws_windows.go

@@ -1,16 +0,0 @@
-//go:build windows
-
-package handler
-
-import (
-	"net/http"
-
-	"github.com/gin-gonic/gin"
-)
-
-// RunCommandWS 交互式 PTY 终端依赖 Unix PTY（见 terminal_ws_unix.go）；Windows 暂不支持。
-func (h *TerminalHandler) RunCommandWS(c *gin.Context) {
-	c.JSON(http.StatusNotImplemented, gin.H{
-		"error": "Interactive WebSocket terminal is not supported on Windows; use POST /terminal/run or /terminal/run/stream instead.",
-	})
-}