Fix: Model cache permissions for Hugging Face Spaces

- Set HF_HOME, TRANSFORMERS_CACHE, HUGGINGFACE_HUB_CACHE to /data/.cache
- Create /data/.cache/huggingface directory with write permissions
- Models will now cache properly in persistent storage

Fixes 'Permission denied: /.cache' error during AI analysis

Dockerfile

@@ -23,6 +23,9 @@ COPY . .
 # HF Spaces has persistent storage at /data
 RUN mkdir -p /data && chmod 777 /data
 
+# Create cache directory for Hugging Face models
+RUN mkdir -p /data/.cache/huggingface && chmod -R 777 /data/.cache
+
 # Hugging Face Spaces uses port 7860
 EXPOSE 7860
 
@@ -31,6 +34,9 @@ ENV FLASK_ENV=production
 ENV PYTHONUNBUFFERED=1
 ENV PORT=7860
 ENV DATABASE_PATH=/data/app.db
+ENV HF_HOME=/data/.cache/huggingface
+ENV TRANSFORMERS_CACHE=/data/.cache/huggingface
+ENV HUGGINGFACE_HUB_CACHE=/data/.cache/huggingface
 
 # Health check
 HEALTHCHECK --interval=30s --timeout=10s --start-period=40s --retries=3 \

Dockerfile.hf

@@ -23,6 +23,9 @@ COPY . .
 # HF Spaces has persistent storage at /data
 RUN mkdir -p /data && chmod 777 /data
 
+# Create cache directory for Hugging Face models
+RUN mkdir -p /data/.cache/huggingface && chmod -R 777 /data/.cache
+
 # Hugging Face Spaces uses port 7860
 EXPOSE 7860
 
@@ -31,6 +34,9 @@ ENV FLASK_ENV=production
 ENV PYTHONUNBUFFERED=1
 ENV PORT=7860
 ENV DATABASE_PATH=/data/app.db
+ENV HF_HOME=/data/.cache/huggingface
+ENV TRANSFORMERS_CACHE=/data/.cache/huggingface
+ENV HUGGINGFACE_HUB_CACHE=/data/.cache/huggingface
 
 # Health check
 HEALTHCHECK --interval=30s --timeout=10s --start-period=40s --retries=3 \