feat: add Wine Z: path prefix for Windows platform on Linux host

- Add winePath helper that prepends Z: when platform is windows on Linux
- Thread platform through buildModPath, buildAutoArgs, and Start()
- Apply Z: prefix to -config=, -mod=, -profiles=, and %command% binary paths
- Add tests for winePath, buildAutoArgs, and buildModPath with platform param
- Fix formatting across services package with gofmt
- Include all prior bug fixes from this branch

backend/internal/api/logs.go

@@ -117,7 +117,9 @@ func (h *Handler) StreamRPTLogs(c *gin.Context) {
 			if currentPath == "" {
 				continue
 			}
-			conn.WriteMessage(websocket.TextMessage, []byte("--- tailing: "+filepath.Base(currentPath)+" ---"))
+			if err := conn.WriteMessage(websocket.TextMessage, []byte("--- tailing: "+filepath.Base(currentPath)+" ---")); err != nil {
+				return
+			}
 		}
 		if currentPath == "" {
 			continue