chore(comment): add open source license header

.github/.licenserc.yaml

@@ -21,5 +21,9 @@ header:
     - '**/gorm_gen/**'
     - '**/kitex_gen/**'
     - '**/*.gen.go'
+    - '**/gen.go'
+    - 'backend/api/**'
+    - '**/*_mock.go'
+    - 'backend/internal/mock/**'
   files:
     - ../backend/go.mod

.github/workflows/semantic-pull-request.yaml

@@ -57,6 +57,7 @@ jobs:
             model
             database
             foundation
+            comment
 
           # The pull request's title should be fulfilled the following pattern:
           #