fix(generator): add missing PIL ImageFont imports and install git in Dockerfile

Dockerfile

@@ -5,6 +5,7 @@ ENV DEBIAN_FRONTEND=noninteractive
 
 # Install system dependencies required for OpenCV, PaddlePaddle, and OpenMP
 RUN apt-get update && apt-get install -y --no-install-recommends \
+    git \
     libgl1 \
     libglib2.0-0 \
     libgomp1 \

ocr-training/scripts/generate_data.py

@@ -5,6 +5,7 @@ import cv2
 import numpy as np
 import json
 import re
+from PIL import Image, ImageFont, ImageDraw
 try:
     from fontTools.ttLib import TTFont
 except ImportError: