fix(reader): skip leading newlines after page split to prevent blank top/bottom

src/reader.rs

@@ -438,11 +438,17 @@ pub fn calculate_pages(text: &str, chars_per_line: usize, lines_per_page: usize)
                 split = i;
             }
             if split < total {
-                pages.push(split);
-                page_start = split;
-                line_count = 0;
-                line_pos = 0;
-                i = split;
+                // Skip leading newlines to prevent starting page with blank line
+                while split < total && chars[split] == '\n' {
+                    split += 1;
+                }
+                if split < total {
+                    pages.push(split);
+                    page_start = split;
+                    line_count = 0;
+                    line_pos = 0;
+                    i = split;
+                }
             }
         }
     }