fix(jenkins): truncate primary_view to fit varchar(255) column (#8899)

* fix(jenkins): truncate primary_view to fit varchar(255) column

Fixes Error 1406 (22001): Data too long for column 'primary_view'
by truncating the concatenated value to 255 characters before saving.

Closes #8897

* ci: exclude generated mocks from golangci-lint

Author: klesh

backend/.golangci.yaml

@@ -243,6 +243,7 @@ linters:
       - third_party$
       - builtin$
       - examples$
+      - mocks$
 formatters:
   enable:
     - gofmt

backend/plugins/jenkins/models/response.go

@@ -61,6 +61,11 @@ func (j Job) ToJenkinsJob() *JenkinsJob {
 		}
 	}
 
+	primaryView := j.URL + j.Path + j.Class
+	if len(primaryView) > 255 {
+		primaryView = primaryView[:255]
+	}
+
 	return &JenkinsJob{
 		FullName:    j.FullName,
 		Name:        j.Name,
@@ -70,7 +75,7 @@ func (j Job) ToJenkinsJob() *JenkinsJob {
 		Base:        j.Base,
 		Url:         j.URL,
 		Description: j.Description,
-		PrimaryView: j.URL + j.Path + j.Class,
+		PrimaryView: primaryView,
 	}
 }