add webpage info

src/cache/page_cache.py

@@ -0,0 +1,9 @@
+from src.database import Session, Webpage
+
+
+async def get_page_description(page_id: str) -> str | None:
+    with Session() as session:
+        page = session.query(Webpage).filter(Webpage.id == page_id).first()
+        if not page:
+            return None
+        return page.description