Fix: Replace mount with symlink for storage directory

- Changed bind mount to symlink in start.sh
- Resolves 'permission denied' error when mounting
- Symlink approach works without elevated privileges

start.sh

@@ -14,8 +14,8 @@ fi
 chown -R cloudron:cloudron /app/data
 chmod -R 755 /app/data/storage
 
-# Bind mount storage to /app/code/storage
-mount --bind /app/data/storage /app/code/storage
+# Create symlink from /app/code/storage to /app/data/storage
+ln -sf /app/data/storage /app/code/storage
 
 # Create .env file in /app/data
 echo "==> Configuring application environment"