Fix readonly filesystem issues - use bind mount for storage and .env in /app/data

Dockerfile

@@ -55,6 +55,10 @@ RUN cd /app/code && \
     rm -rf node_modules && \
     chown -R cloudron:cloudron /app/code/public
 
+# Remove storage directory as it will be mounted from /run
+RUN rm -rf /app/code/storage && \
+    mkdir -p /app/code/storage
+
 # Copy configuration files
 COPY nginx.conf /etc/nginx/sites-available/default
 COPY supervisor.conf /etc/supervisor/conf.d/anonaddy.conf
@@ -80,9 +84,11 @@ RUN mkdir -p /tmp/data && \
 # Set permissions
 RUN chmod +x /app/code/start.sh && \
     chown -R cloudron:cloudron /app/code && \
-    chmod -R 755 /app/code/storage && \
     chmod -R 755 /app/code/bootstrap/cache
 
+# Create volume mount points for writable directories
+VOLUME ["/app/data", "/run", "/tmp"]
+
 # Configure PHP-FPM to run as cloudron user
 RUN sed -i 's/user = www-data/user = cloudron/g' /etc/php/8.3/fpm/pool.d/www.conf && \
     sed -i 's/group = www-data/group = cloudron/g' /etc/php/8.3/fpm/pool.d/www.conf && \