fix: support multiline annotation text from CSV

app/annotate.py

@@ -25,7 +25,7 @@ def add_textbox(page, row):
     h = float(row["h"])
 
     rect = fitz.Rect(x, y, x + w, y + h)
-    text = str(row["note_text"])
+    text = str(row["note_text"]).replace("\\n", "\n")
     border_width = float(row.get("border_width", 1.5) or 1.5)
 
     box = page.add_rect_annot(rect)
@@ -100,12 +100,14 @@ def generate_annotations(csv_path):
 
 def main():
     parser = argparse.ArgumentParser(description="Generate PDF annotations from CSV data.")
+
     parser.add_argument(
-        "csv",
-        nargs="?",
+        "-c",
+        "--csv",
         default=str(DATA_DIR / "annotations.csv"),
-        help="Path to annotations CSV file",
+        help="Path to annotations CSV file. Default: data/annotations.csv",
     )
+
     args = parser.parse_args()
 
     generate_annotations(Path(args.csv))