fix: snippet not found throw

src/modules/serverless/serverless.controller.ts

@@ -58,7 +58,7 @@ export class ServerlessController {
     })
 
     if (!snippet) {
-      throw new NotFoundException('snippet is not found')
+      throw new NotFoundException('serverless function is not exist')
     }
 
     if (snippet.private && !isMaster) {

src/modules/snippet/snippet.service.ts

@@ -99,6 +99,9 @@ export class SnippetService {
    */
   async getSnippetByName(name: string, reference: string) {
     const doc = await this.model.findOne({ name, reference }).lean()
+    if (!doc) {
+      throw new NotFoundException('snippet is not found')
+    }
     return doc
   }