added initial version

src/app.py

@@ -11,6 +11,7 @@ from fastapi.middleware.cors import CORSMiddleware
 from fastapi.responses import HTMLResponse
 from fastapi.staticfiles import StaticFiles
 from pathlib import Path
+import tempfile
 
 # Get the absolute path to the templates directory
 TEMPLATES_DIR = os.path.join(os.path.dirname(__file__), "templates")
@@ -35,18 +36,15 @@ app.add_middleware(
 # Set device
 device = 'cuda' if torch.cuda.is_available() else 'cpu'
 
-# Create cache directory in the current working directory
-cache_dir = Path("model_cache")
-cache_dir.mkdir(exist_ok=True)
-
-# Set environment variable for Hugging Face cache
+# Use system's temporary directory
+cache_dir = Path(tempfile.gettempdir()) / "model_cache"
 os.environ['TRANSFORMERS_CACHE'] = str(cache_dir)
 os.environ['HF_HOME'] = str(cache_dir)
 
 # Load model from Hugging Face Hub
 def load_model():
     try:
-        # Download the model file from HF Hub with custom cache directory
+        # Download the model file from HF Hub with temp directory
         model_path = hf_hub_download(
             repo_id=MODEL_ID,
             filename="best_model.pth",