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/73c99fb9-f828-43ce-b87a-01dc07faa224.json

@@ -9,7 +9,7 @@
       "parameters": {
         "files": [
           {
-            "url": "https://drive.usercontent.google.com/download?id=1KDDJCei7KE1yRWGNUSmUnFnpZBH2gDeE&export=download&authuser=0&confirm=t&uuid=8ce4d382-33a7-4198-ac5c-75b6229dd8c5&at=APZUnTXSeOg_uw4ClXrbeBkNn78h:1708425555159",
+            "url": "https://huggingface.co/datasets/xlangai/ubuntu_osworld_file_cache/resolve/main/libreoffice_impress/73c99fb9-f828-43ce-b87a-01dc07faa224/109_4.pptx",
             "path": "/home/user/Desktop/109_4.pptx"
           }
         ]
@@ -61,7 +61,7 @@
     "func": "compare_pptx_files",
     "expected": {
       "type": "cloud_file",
-      "path": "https://drive.usercontent.google.com/download?id=1w6DoJnhq8SDJQ76iDB_L2r7mGZNtVFIO&export=download&authuser=0&confirm=t&uuid=d644e0f6-3c04-4bd5-b585-7b48667bbc59&at=APZUnTUUDtjcms9zSBa3uNmCUybA:1708425726048",
+      "path": "https://huggingface.co/datasets/xlangai/ubuntu_osworld_file_cache/resolve/main/libreoffice_impress/73c99fb9-f828-43ce-b87a-01dc07faa224/109_4_Gold.pptx",
       "dest": "109_4_Gold.pptx"
     },
     "result": {