fix clippy errs

src/api.rs

@@ -1142,8 +1142,8 @@ mod tests {
         let months: HashSet<_> = body.iter().map(|r| r.month.as_str()).collect();
         let species: HashSet<_> = body.iter().map(|r| r.species_code.as_str()).collect();
 
-        assert!(months.len() >= 1);
+        assert!(!months.is_empty());
-        assert!(species.len() >= 1);
+        assert!(!species.is_empty());
 
         for row in &body {
             assert!(!row.species_code.is_empty());

src/main.rs

@@ -60,10 +60,12 @@ fn cleanup_stale_parquet_files() {
     match std::fs::read_dir(&tmp_dir) {
         Ok(entries) => {
             for entry in entries.filter_map(|e| e.ok()) {
-                if let Some(name) = entry.file_name().to_str() {
+                if let Some(name) = entry.file_name().to_str()
-                    if name.starts_with("hagfish-") && name.ends_with(".parquet") {
+                    && name.starts_with("hagfish-")
-                        if let Ok(metadata) = entry.metadata() {
+                    && name.ends_with(".parquet")
-                            if let Ok(modified) = metadata.modified() {
+                    && let Ok(metadata) = entry.metadata()
+                    && let Ok(modified) = metadata.modified()
+                {
                     let age = std::time::SystemTime::now().duration_since(modified);
                     if age.map(|d| d.as_secs() > 3600).unwrap_or(false) {
                         let _ = std::fs::remove_file(entry.path());
@@ -71,9 +73,6 @@ fn cleanup_stale_parquet_files() {
                 }
             }
         }
-                }
-            }
-        }
         Err(e) => tracing::warn!(error = %e, "Failed to list temp dir"),
     }
 }