Fix missed raw draw.text in render_phase_closeup

The previous commit replaced the caption block in composite_full_moon
but missed render_phase_closeup because that block had no comment to
match the replace_all pattern. Both caption sites now go through
_draw_caption() so the Unicode / font fix applies everywhere.

https://claude.ai/code/session_01HkTxpNSTWtViZzxbrbKytR

moon_composite.py

@@ -355,8 +355,7 @@ def render_phase_closeup(
 
     if caption:
         draw = ImageDraw.Draw(bg)
-        draw.text((24, output_size[1] - 44), caption, fill=(0, 0, 0))
-        draw.text((22, output_size[1] - 46), caption, fill=(220, 220, 220))
+        _draw_caption(draw, caption, (22, output_size[1] - 48), output_size[0])
 
     Path(out_path).parent.mkdir(parents=True, exist_ok=True)
     bg.save(out_path, quality=92)