fix: resolve compiler warnings and downgrade JWT secret log to warn

- Downgrade OXICLOUD_JWT_SECRET missing log from error to warn level,
  since generating a random secret per session is valid behavior
- Remove unused import super::* in calendar_storage_adapter tests
- Remove unused import tokio_stream::StreamExt in compression_service tests
- Prefix unused validate_user_ownership with _ in trash_service
- Add nohup.out to .gitignore

src/infrastructure/adapters/calendar_storage_adapter.rs

@@ -294,7 +294,5 @@ impl CalendarStoragePort for CalendarStorageAdapter {
 
 #[cfg(test)]
 mod tests {
-    use super::*;
-    
     // Tests would go here using mock repositories
 }