perf(session): improve page management and speed up execution

Close pages immediately after tasks finish to reduce resource usage and
improve overall performance. Update corresponding test files to reflect
the new page lifecycle management.

scrapling/engines/_browsers/_page.py

@@ -23,11 +23,6 @@ class PageInfo:
         self.state = "busy"
         self.url = url
 
-    def mark_finished(self):
-        """Mark the page as finished for new requests"""
-        self.state = "finished"
-        self.url = ""
-
     def mark_error(self):
         """Mark the page as having an error"""
         self.state = "error"
@@ -83,33 +78,3 @@ class PagePool:
         """Remove pages in error state"""
         with self._lock:
             self.pages = [p for p in self.pages if p.state != "error"]
-
-    def close_all_finished_pages(self):
-        """Close all pages in finished state and remove them from the pool"""
-        with self._lock:
-            pages_to_remove = []
-            for page_info in self.pages:
-                if page_info.state == "finished":
-                    try:
-                        page_info.page.close()
-                    except Exception:
-                        pass
-                    pages_to_remove.append(page_info)
-
-            for page_info in pages_to_remove:
-                self.pages.remove(page_info)
-
-    async def aclose_all_finished_pages(self):
-        """Async version: Close all pages in finished state and remove them from the pool"""
-        with self._lock:
-            pages_to_remove = []
-            for page_info in self.pages:
-                if page_info.state == "finished":
-                    try:
-                        await page_info.page.close()
-                    except Exception:
-                        pass
-                    pages_to_remove.append(page_info)
-
-            for page_info in pages_to_remove:
-                self.pages.remove(page_info)