Initial commit: Invoice field extraction system using YOLO + OCR

Features:
- Auto-labeling pipeline: CSV values -> PDF search -> YOLO annotations
- Flexible date matching: year-month match, nearby date tolerance
- PDF text extraction with PyMuPDF
- OCR support for scanned documents (PaddleOCR)
- YOLO training and inference pipeline
- 7 field types: InvoiceNumber, InvoiceDate, InvoiceDueDate, OCR, Bankgiro, Plusgiro, Amount

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

run_autolabel.py

@@ -0,0 +1,10 @@
+#!/usr/bin/env python3
+"""
+自动标注脚本 - 调用 CLI 模块
+在 WSL 中运行: python run_autolabel.py
+"""
+
+from src.cli.autolabel import main
+
+if __name__ == '__main__':
+    main()