feat: add comment field to environment variables

- Add comment field to EnvironmentVariable model and database
- Update parseEnvFormatToArray to extract inline comments from env files
- Update Livewire components to handle comment field
- Add UI for displaying and editing comments
- Add tests for comment parsing functionality

openapi.yaml

@@ -6687,6 +6687,9 @@ components:
           type: string
         real_value:
           type: string
+        comment:
+          type: string
+          nullable: true
         version:
           type: string
         created_at: