功能：完善云管助手与GPU故障恢复核对

platform/internal/server/provision_worker.go

@@ -74,7 +74,14 @@ func (s *Server) validateTemplate(c *gin.Context) {
 		s.fail(c, 502, "invalid_template", "模板配置摘要缺失")
 		return
 	}
-	if err = s.DB.GetContext(ctx, &template, "UPDATE image_templates SET digest=$1,validated_at=now() WHERE id=$2 RETURNING *", digest, template.ID); err != nil {
+	// A source template change invalidates the previous hardware-encoding
+	// acceptance. The administrator must verify the updated guest image again
+	// before it can be used for a new desktop, regardless of its OS.
+	hardwareVerified := template.HardwareEncodingVerified
+	if template.Digest != digest {
+		hardwareVerified = false
+	}
+	if err = s.DB.GetContext(ctx, &template, "UPDATE image_templates SET digest=$1,validated_at=now(),hardware_encoding_verified=$2 WHERE id=$3 RETURNING *", digest, hardwareVerified, template.ID); err != nil {
 		s.dbError(c, err)
 		return
 	}