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/ed43c15f-00cb-4054-9c95-62c880865d68.json

@@ -9,7 +9,7 @@
       "parameters": {
         "files": [
           {
-            "url": "https://drive.usercontent.google.com/download?id=1IpVUMKta4y8W-qPBNJn_jy9rpdO_1mCs&export=download&authuser=0&confirm=t&uuid=de9687ff-b94c-44ae-83c5-115bcc7c4137&at=APZUnTXJxT8187oLtf-wOqBGuAzt:1708403175628",
+            "url": "https://huggingface.co/datasets/xlangai/ubuntu_osworld_file_cache/resolve/main/libreoffice_impress/ed43c15f-00cb-4054-9c95-62c880865d68/43_1.pptx",
             "path": "/home/user/Desktop/43_1.pptx"
           }
         ]
@@ -61,7 +61,7 @@
     "func": "compare_pptx_files",
     "expected": {
       "type": "cloud_file",
-      "path": "https://drive.usercontent.google.com/download?id=12ZeyLnQUokLRSeHyniNDqD6v-cphheTm&export=download&authuser=0&confirm=t&uuid=c479d98e-11c5-4eb9-aba0-8bae9f3f5938&at=APZUnTVHw_B2zxxSIUjT0XfA5QOb:1708403918432",
+      "path": "https://huggingface.co/datasets/xlangai/ubuntu_osworld_file_cache/resolve/main/libreoffice_impress/ed43c15f-00cb-4054-9c95-62c880865d68/43_1_Gold.pptx",
       "dest": "43_1_Gold.pptx"
     },
     "result": {