Remove page limit for book upload

app.py

@@ -374,7 +374,7 @@ def process_anatomy_query(query: str) -> tuple:
 # Book Learning Mode Functions
 def process_uploaded_book(pdf_file):
     """
-    Process uploaded PDF book and extract first 20 pages with images and text.
+    Process uploaded PDF book and extract all pages with images and text.
     Returns (list_of_tuples, status_message) where tuple is (image, caption, text)
     """
     if pdf_file is None:
@@ -389,8 +389,8 @@ def process_uploaded_book(pdf_file):
             tmp_path = tmp_file.name
         
         try:
-            # Convert first 20 pages to images
-            images = convert_from_path(tmp_path, first_page=1, last_page=20, dpi=150)
+            # Convert all pages to images (this might take a while for large books)
+            images = convert_from_path(tmp_path, dpi=150)
             
             # Extract text from pages
             reader = PyPDF2.PdfReader(tmp_path)