feat: Migrate OSWorld files to HuggingFace cache with comprehensive documentation

- Add detailed README for file cache repository
- Implement migration script with retry logic and browser simulation
- Support automatic file type detection and deduplication
- Ensure reliable hosting for OSWorld evaluation files

evaluation_examples/examples/libreoffice_writer/e246f6d8-78d7-44ac-b668-fcf47946cb50.json

@@ -9,7 +9,7 @@
       "parameters": {
         "files": [
           {
-            "url": "https://drive.google.com/uc?id=1b8mPpEDlBrTLcOpf0ZcjdUV4vLAwxH1r&export=download",
+            "url": "https://huggingface.co/datasets/xlangai/ubuntu_osworld_file_cache/resolve/main/libreoffice_writer/e246f6d8-78d7-44ac-b668-fcf47946cb50/Y22-2119-assign4.docx",
             "path": "/home/user/Desktop/Y22-2119-assign4.docx"
           }
         ]
@@ -55,7 +55,7 @@
     "func": "check_italic_font_size_14",
     "expected": {
       "type": "cloud_file",
-      "path": "https://drive.google.com/uc?id=1GTZ-DkMxpdYx38z_s0ab85Ejgxv3qfEp&export=download",
+      "path": "https://huggingface.co/datasets/xlangai/ubuntu_osworld_file_cache/resolve/main/libreoffice_writer/e246f6d8-78d7-44ac-b668-fcf47946cb50/Y22-2119-assign4_Gold.docx",
       "dest": "Y22-2119-assign4.docx_Gold.docx"
     },
     "result": {