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

.gitignore

@@ -61,3 +61,4 @@ logs/
 *.bak
 *.swp
 *.swo
+nohup.out

src/application/services/trash_service.rs

@@ -80,7 +80,7 @@ impl TrashService {
     /// Validates that the given user owns the trashed item.
     /// Returns an error if the item does not exist or belongs to a different user.
     #[instrument(skip(self))]
-    async fn validate_user_ownership(&self, item_id: &str, user_id: &str) -> Result<()> {
+    async fn _validate_user_ownership(&self, item_id: &str, user_id: &str) -> Result<()> {
         let item_uuid = Uuid::parse_str(item_id)
             .map_err(|e| DomainError::validation_error(format!("Invalid item ID: {}", e)))?;
         let user_uuid = Uuid::parse_str(user_id)

src/common/config.rs

@@ -464,12 +464,12 @@ impl AppConfig {
             let generated_secret: String = key.iter().map(|b| format!("{:02x}", b)).collect();
             config.auth.jwt_secret = generated_secret;
             
-            tracing::error!("==========================================================");
-            tracing::error!("SECURITY WARNING: OXICLOUD_JWT_SECRET is not set!");
-            tracing::error!("A random secret has been generated for this session.");
-            tracing::error!("All tokens will be INVALIDATED on restart.");
-            tracing::error!("Set OXICLOUD_JWT_SECRET env var for production use.");
-            tracing::error!("==========================================================");
+            tracing::warn!("==========================================================");
+            tracing::warn!("OXICLOUD_JWT_SECRET is not set.");
+            tracing::warn!("A random secret has been generated for this session.");
+            tracing::warn!("All tokens will be INVALIDATED on restart.");
+            tracing::warn!("Set OXICLOUD_JWT_SECRET env var for production use.");
+            tracing::warn!("==========================================================");
         }
             
         if let Ok(access_token_expiry) = env::var("OXICLOUD_ACCESS_TOKEN_EXPIRY_SECS")

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
 }

src/infrastructure/services/compression_service.rs

@@ -382,7 +382,6 @@ impl CompressionPort for GzipCompressionService {
 #[cfg(test)]
 mod tests {
     use super::*;
-    use tokio_stream::StreamExt;
     use futures::TryStreamExt;
     
     #[tokio::test]