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/5c1a6c3d-c1b3-47cb-9b01-8d1b7544ffa1.json

@@ -9,7 +9,7 @@
       "parameters": {
         "files": [
           {
-            "url": "https://drive.usercontent.google.com/download?id=10bkeI31PUtosi2BSTypWmXj8RP-rxRig&export=download&authuser=0&confirm=t&uuid=e0199c99-6d5c-4a07-a008-8fd0e0d7d389&at=APZUnTWc_cd0T8XOaRYl3DxA1rkx:1708523893931",
+            "url": "https://huggingface.co/datasets/xlangai/ubuntu_osworld_file_cache/resolve/main/libreoffice_impress/5c1a6c3d-c1b3-47cb-9b01-8d1b7544ffa1/39_2.pptx",
             "path": "/home/user/Desktop/39_2.pptx"
           }
         ]
@@ -61,7 +61,7 @@
     "func": "compare_pptx_files",
     "expected": {
       "type": "cloud_file",
-      "path": "https://drive.usercontent.google.com/download?id=1iLLSWlspJduOqeMVF9dkLkfZCGJ_Nv_y&export=download&authuser=0&confirm=t&uuid=87c60d24-ffdc-40ab-b880-d30ea06190d7&at=APZUnTVcd7VioUXwbx4f49bvVGVF:1708524032542",
+      "path": "https://huggingface.co/datasets/xlangai/ubuntu_osworld_file_cache/resolve/main/libreoffice_impress/5c1a6c3d-c1b3-47cb-9b01-8d1b7544ffa1/39_2_Gold.pptx",
       "dest": "39_2_Gold.pptx"
     },
     "result": {