feat: enhance menu management with three-level hierarchy support, additional metadata fields, and utility scripts for data extraction

Media/extract.py

@@ -0,0 +1,15 @@
+import sys
+from pypdf import PdfReader
+
+pdf_path = sys.argv[1]
+output_path = sys.argv[2]
+
+reader = PdfReader(pdf_path)
+text = ""
+for i, page in enumerate(reader.pages):
+    text += f"\n--- Page {i + 1} ---\n"
+    text += page.extract_text()
+
+with open(output_path, "w", encoding="utf-8") as f:
+    f.write(text)
+print(f"Extracted {len(reader.pages)} pages to {output_path}")