Add webhook name field to improve webhook identification (#37025) (#37040)

Add an optional Name field to webhooks so users can give them
human-readable labels instead of relying only on URLs. The webhook
overview page now displays names when available, or falls back to the
URL for unnamed webhooks.

Fixes #37025

---------

Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>

routers/web/repo/setting/webhook.go

@@ -234,6 +234,7 @@ func createWebhook(ctx *context.Context, params webhookParams) {
 	w := &webhook.Webhook{
 		RepoID:          orCtx.RepoID,
 		URL:             params.URL,
+		Name:            strings.TrimSpace(params.WebhookForm.Name),
 		HTTPMethod:      params.HTTPMethod,
 		ContentType:     params.ContentType,
 		Secret:          params.WebhookForm.Secret,
@@ -288,6 +289,7 @@ func editWebhook(ctx *context.Context, params webhookParams) {
 	}
 
 	w.URL = params.URL
+	w.Name = strings.TrimSpace(params.WebhookForm.Name)
 	w.ContentType = params.ContentType
 	w.Secret = params.WebhookForm.Secret
 	w.HookEvent = ParseHookEvent(params.WebhookForm)