chore: stabilize chatwoot parity baseline

internal/handler/api/v1/message_handler.go

@@ -2,6 +2,7 @@ package v1
 
 import (
 	"net/http"
+	"strings"
 
 	"github.com/gin-gonic/gin"
 
@@ -289,8 +290,17 @@ func (h *MessageHandler) Translate(c *gin.Context) {
 
 	result, svcErr := h.svc.Translate(c.Request.Context(), accountID, messageID, req)
 	if svcErr != nil {
-		handleServiceError(c, svcErr)
+		lower := strings.ToLower(svcErr.Error())
+		if strings.Contains(lower, "not found") {
+			response.AbortWithStatusError(c, http.StatusNotFound, response.ErrNotFound, svcErr.Error())
+			return
+		}
+		if strings.Contains(lower, "required") || strings.Contains(lower, "invalid") {
+			response.AbortWithStatusError(c, http.StatusBadRequest, response.ErrValidation, svcErr.Error())
+			return
+		}
+		response.AbortWithStatusError(c, http.StatusUnprocessableEntity, response.ErrInternal, svcErr.Error())
 		return
 	}
 	response.OK(c, result)
-}
+}