Fix: Restore 1.75 AR threshold for character routing

app.py

@@ -81,6 +81,7 @@ def original_classify_input(image):
     elif bc >= 4: is_char = False
     elif ar < 1.3 and bc <= 2: is_char = True
     elif bc == 1 and ar < 1.5: is_char = True
+    elif ar < 1.75 and bc <= 2: is_char = True  # <--- RESTORED THIS LINE
     elif ar > 1.6: is_char = False
     return ("character" if is_char else "word"), ar, bc