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/8979838c-54a5-4454-a2b8-3d135a1a5c8f.json

@@ -9,7 +9,7 @@
       "parameters": {
         "files": [
           {
-            "url": "https://drive.usercontent.google.com/download?id=1AjH-49ptLddl6C_ousVtrqn2S4JTwrCV&export=download&authuser=0&confirm=t&uuid=df793a2c-71dc-4fe0-ad02-11a17fed8fdc&at=APZUnTVhQD14-E2NdPhq372jD85R:1708063430974",
+            "url": "https://huggingface.co/datasets/xlangai/ubuntu_osworld_file_cache/resolve/main/libreoffice_impress/8979838c-54a5-4454-a2b8-3d135a1a5c8f/186_3.pptx",
             "path": "/home/user/Desktop/186_3.pptx"
           }
         ]
@@ -61,7 +61,7 @@
     "func": "compare_pptx_files",
     "expected": {
       "type": "cloud_file",
-      "path": "https://drive.usercontent.google.com/download?id=1tCdMVZGl-cXHuc4qBxCRb9_T86H8m_3Y&export=download&authuser=0&confirm=t&uuid=eb96a446-c7b4-4281-a121-4632170933ab&at=APZUnTVAdHrJ0xNgWB0XNmk1r4fg:1708063575181",
+      "path": "https://huggingface.co/datasets/xlangai/ubuntu_osworld_file_cache/resolve/main/libreoffice_impress/8979838c-54a5-4454-a2b8-3d135a1a5c8f/186_3_Gold.pptx",
       "dest": "186_3_Gold.pptx"
     },
     "result": {