Use local temp_images directory instead of system temp

Replace tempfile.mkdtemp() with simple local directory:
- Create "temp_images" in current working directory
- More reliable in containerized environments like HF Jobs
- Simpler and easier to debug

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

deepseek-ocr.py

@@ -42,8 +42,8 @@ import logging
 import os
 import shutil
 import sys
-import tempfile
 from datetime import datetime
+from pathlib import Path
 from typing import Optional
 
 import torch
@@ -333,9 +333,10 @@ def main(
     logger.info(f"Processing {len(dataset)} images (sequential, no batching)")
     logger.info("Note: This may be slower than vLLM-based scripts")
 
-    # Create temp directory for image files
-    temp_dir = tempfile.mkdtemp()
-    temp_image_path = os.path.join(temp_dir, "temp_image.png")
+    # Create temp directory for image files (simple local dir)
+    temp_dir = Path("temp_images")
+    temp_dir.mkdir(exist_ok=True)
+    temp_image_path = str(temp_dir / "temp_image.png")
 
     try:
         for i in tqdm(range(len(dataset)), desc="OCR processing"):