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

core/layout_engine.py

@@ -155,18 +155,16 @@ def _arabic_font(size: int) -> ImageFont.FreeTypeFont:
 def _reshape_arabic(text: str) -> str:
     if not text: return ""
     try:
-        # 1. Reshape the text to get connected glyphs
+        # 1. Reshape the text to handle ligatures and character connections
         reshaped_text = arabic_reshaper.reshape(text)
-        
-        # 2. Manually reverse the string characters.
-        # In a pure LTR engine like Pillow (without Raqm), the reshaped glyphs 
-        # must be provided in reverse order so that the first logical character 
-        # ends up on the right side of the word visually.
-        return "".join(reversed(reshaped_text))
+
+        # 2. Apply the Bidi algorithm to handle Right-to-Left reordering properly.
+        # Using get_display is the robust way to ensure text flows correctly
+        # in environments without native complex script support (like Pillow without Raqm).
+        return get_display(reshaped_text)
     except Exception as e:
         print(f"DEBUG: Arabic Shaping Error: {e}")
         return text
-
 def _resize_to_fit(img: Image.Image, max_w: int, max_h: int) -> Image.Image:
     w, h = img.size
     scale = min(max_w / w, max_h / h)