Update Dockerfile

Dockerfile

@@ -1,21 +1,30 @@
 FROM python:3.10-slim
 
-# Install espeak-ng for G2P fallback
+# 1️⃣ Create writable cache directory for Hugging Face Hub
+RUN mkdir -p /app/.cache/huggingface/hub && \
+    chown -R root:root /app/.cache/huggingface
+
+# 2️⃣ Redirect HF cache environment variables
+ENV HF_HOME=/app/.cache/huggingface \
+    HUGGINGFACE_HUB_CACHE=/app/.cache/huggingface/hub \
+    TRANSFORMERS_CACHE=/app/.cache/huggingface
+
+# 3️⃣ Install system dependencies
 RUN apt-get update && \
     apt-get install -y espeak-ng && \
     rm -rf /var/lib/apt/lists/*
 
 WORKDIR /app
 
-# Copy and install Python deps
-COPY requirements.txt .
+# 4️⃣ Install Python dependencies
+COPY requirements.txt ./
 RUN pip install --no-cache-dir -r requirements.txt
 
-# Copy application code
+# 5️⃣ Copy application code
 COPY . .
 
-# Expose the port that Spaces uses by default
+# 6️⃣ Expose Spaces default port
 EXPOSE 7860
 
-# Start Uvicorn on port 7860
-CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "7860"]
+# 7️⃣ Start the FastAPI application
+CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "7860"]