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/4ed5abd0-8b5d-47bd-839f-cacfa15ca37a.json

@@ -9,7 +9,7 @@
       "parameters": {
         "files": [
           {
-            "url": "https://drive.usercontent.google.com/download?id=1LypKqb3-6-adlwmD8g6YWxL9CL0QzeJy&export=download&authuser=0&confirm=t&uuid=2a522f07-f604-4fb5-8dc4-7ab3eca97f5e&at=APZUnTXJ7eUEn7VPSwt_hMuQR4S9:1708346147276",
+            "url": "https://huggingface.co/datasets/xlangai/ubuntu_osworld_file_cache/resolve/main/libreoffice_impress/4ed5abd0-8b5d-47bd-839f-cacfa15ca37a/4_1.pptx",
             "path": "/home/user/Desktop/4_1.pptx"
           }
         ]
@@ -61,7 +61,7 @@
     "func": "compare_pptx_files",
     "expected": {
       "type": "cloud_file",
-      "path": "https://drive.usercontent.google.com/download?id=1u3MnG2I5MYwqnFFkHmBQuAmMI9F-Neon&export=download&authuser=0&confirm=t&uuid=4fe8915f-aa68-4169-88ae-1cc031fa199b&at=APZUnTUbh0ByGkJNU5WuP3mdjR7I:1708346296614",
+      "path": "https://huggingface.co/datasets/xlangai/ubuntu_osworld_file_cache/resolve/main/libreoffice_impress/4ed5abd0-8b5d-47bd-839f-cacfa15ca37a/4_1_Gold.pptx",
       "dest": "4_1_Gold.pptx"
     },
     "result": {