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_impress/9ec204e4-f0a3-42f8-8458-b772a6797cab.json

@@ -9,7 +9,7 @@
       "parameters": {
         "files": [
           {
-            "url": "https://drive.usercontent.google.com/download?id=1ad5vUXasdN2MypNap-pBUmgPg5FaxmDA&export=download&authuser=0&confirm=t&uuid=9dc069bb-edd3-4ae9-b356-4c6543778584&at=APZUnTXbgLHjv1MhMFy1IfZL3fQI:1705338128337",
+            "url": "https://huggingface.co/datasets/xlangai/ubuntu_osworld_file_cache/resolve/main/libreoffice_impress/9ec204e4-f0a3-42f8-8458-b772a6797cab/MLA_Workshop_061X_Works_Cited.pptx",
             "path": "/home/user/Desktop/MLA_Workshop_061X_Works_Cited.pptx"
           }
         ]
@@ -61,7 +61,7 @@
     "func": "compare_pptx_files",
     "expected": {
       "type": "cloud_file",
-      "path": "https://drive.usercontent.google.com/download?id=1otbzscpOZ0tCXMvsMC0MmNWUC7Pv71of&export=download&authuser=0&confirm=t&uuid=faa0b0c1-6b14-4bce-a1fd-ccf824ee1e60&at=APZUnTXw6TlBOlrPPZ2OhfGnNPf0:1705338135842",
+      "path": "https://huggingface.co/datasets/xlangai/ubuntu_osworld_file_cache/resolve/main/libreoffice_impress/9ec204e4-f0a3-42f8-8458-b772a6797cab/MLA_Workshop_061X_Works_Cited_Gold.pptx",
       "dest": "MLA_Workshop_061X_Works_Cited_Gold.pptx"
     },
     "result": {