Fix main Dockerfile permission issue and update to working versions

v1.3.8 - CRITICAL FIX: Main Dockerfile was trying to create /app/hf_cache
as non-root user after WORKDIR created /app as root
- Fixed directory creation order: create as root first, then switch users
- Updated main app.py to use working cache-fixed version
- Updated main requirements.txt to use compatible numpy>=1.26.0 version
- This should resolve the persistent 'Permission denied' Docker build error

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

Dockerfile

@@ -10,11 +10,14 @@ RUN apt-get update && apt-get install -y \
     tar \
     && rm -rf /var/lib/apt/lists/*
 
-# Create a non-root user and set up git config for that user
+# Create a non-root user 
 RUN useradd -m -u 1000 appuser && \
     mkdir -p /home/appuser && \
     chown -R appuser:appuser /home/appuser
 
+# Create app directory structure as root first
+RUN mkdir -p /app/hf_cache
+
 # Switch to non-root user for git operations
 USER appuser
 
@@ -22,10 +25,6 @@ USER appuser
 RUN git config --global user.email "appuser@docker.local" && \
     git config --global user.name "Docker App User"
 
-# Create app directory with proper ownership
-RUN mkdir -p /app && \
-    mkdir -p /app/hf_cache
-
 # Switch back to root to install system packages
 USER root