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/05dd4c1d-c489-4c85-8389-a7836c4f0567.json

@@ -9,7 +9,7 @@
       "parameters": {
         "files": [
           {
-            "url": "https://drive.usercontent.google.com/download?id=1umyrllTwYajrx9PxsMkT7TWBA2PRSke6&export=download&authuser=0&confirm=t&uuid=7f53782b-b7e3-4548-89b1-4861efebdec7&at=APZUnTXdhM04t-uEi9iUseJso_Uq:1708331729329",
+            "url": "https://huggingface.co/datasets/xlangai/ubuntu_osworld_file_cache/resolve/main/libreoffice_impress/05dd4c1d-c489-4c85-8389-a7836c4f0567/38_1.pptx",
             "path": "/home/user/Desktop/38_1.pptx"
           }
         ]
@@ -61,7 +61,7 @@
     "func": "compare_pptx_files",
     "expected": {
       "type": "cloud_file",
-      "path": "https://drive.usercontent.google.com/download?id=1JWhZyRRwHsbL9RAPVfAdeem7Cx8mb4Fd&export=download&authuser=0&confirm=t&uuid=c524fb99-8188-468f-8343-6ad3951956b1&at=APZUnTUqPm-rV17IRpbPW2V-0gsL:1708332053291",
+      "path": "https://huggingface.co/datasets/xlangai/ubuntu_osworld_file_cache/resolve/main/libreoffice_impress/05dd4c1d-c489-4c85-8389-a7836c4f0567/38_1_Gold.pptx",
       "dest": "38_1_Gold.pptx"
     },
     "result": {