Fix Box constructor parameter names in text-based spell checking

- Changed from top/left/bottom/right to y1/x1/y2/x2 parameters
- Box class expects (y1, x1, y2, x2, area) constructor arguments
- Fixed both coordinate mapping and fallback placeholder boxes

pdf_comparator.py

@@ -389,10 +389,10 @@ def find_misspell_boxes_from_text(
                         if has_misspelling:
                             bbox = span["bbox"]  # [x0, y0, x1, y1]
                             boxes.append(Box(
-                                top=bbox[1],      # y0
-                                left=bbox[0],     # x0
-                                bottom=bbox[3],   # y1
-                                right=bbox[2],    # x1
+                                y1=bbox[1],       # y0
+                                x1=bbox[0],      # x0
+                                y2=bbox[3],      # y1
+                                x2=bbox[2],      # x1
                                 area=(bbox[2] - bbox[0]) * (bbox[3] - bbox[1])
                             ))
         
@@ -411,10 +411,10 @@ def find_misspell_boxes_from_text(
             if misspelled_words:
                 # Create a placeholder box for the page
                 boxes.append(Box(
-                    top=page_num * 1000,
-                    left=0,
-                    bottom=(page_num + 1) * 1000,
-                    right=800,
+                    y1=page_num * 1000,
+                    x1=0,
+                    y2=(page_num + 1) * 1000,
+                    x2=800,
                     area=800 * 1000
                 ))