Store original and cleaned files in batch folder

- Save original .txt file in the batch folder
- Save cleaned .csv file with just batch number as filename (no '-cleaned' suffix)
- Both files stored alongside the HTML and PDF outputs

src/main.rs

@@ -239,19 +239,28 @@ fn main() -> Result<(), Box<dyn std::error::Error>> {
 
     println!("Konverterar {} till rensat format...", filename);
 
-    let cleaned_path =
-        base_output_dir.join(format!("{}.cleaned.csv", filename.trim_end_matches(".txt")));
-    let batch_number = clean_csv_file(input_path, &cleaned_path)?;
-
-    println!(
-        "Konverterade {} transaktioner",
-        fs::read_to_string(&cleaned_path)?.lines().count() - 1
-    );
+    let temp_cleaned_path =
+        base_output_dir.join(format!("{}.temp.csv", filename.trim_end_matches(".txt")));
+    let batch_number = clean_csv_file(input_path, &temp_cleaned_path)?;
 
     let output_dir = base_output_dir.join(&batch_number);
     fs::create_dir_all(&output_dir)?;
 
-    let batch = read_csv_file(&cleaned_path)?;
+    fs::copy(input_path, output_dir.join(format!("{}.txt", batch_number)))?;
+    fs::rename(
+        &temp_cleaned_path,
+        output_dir.join(format!("{}.csv", batch_number)),
+    )?;
+
+    println!(
+        "Konverterade {} transaktioner",
+        fs::read_to_string(output_dir.join(format!("{}.csv", batch_number)))?
+            .lines()
+            .count()
+            - 1
+    );
+
+    let batch = read_csv_file(&output_dir.join(format!("{}.csv", batch_number)))?;
     println!("Laddade {} transaktioner", batch.transactions.len());
 
     let first_date = batch.transactions.first().map(|t| t.date).unwrap();