Intelligent Arabic rendering: skip bidi reordering if raqm is present to avoid double-reversal

Fix Arabic text reversal by using python-bidi instead of manual reversal

Fix SyntaxError in layout_engine.py

Add large_photo_bottom_pad setting to control big photo's lower border

Make branding bottom offset controllable via settings.json

Make photo stroke thickness controllable via settings.json

Add thin inner stroke to photos in layout

Initialize Hugging Face Space with project files