Fix dict attribute access in market hydrate_market

post is a raw dict from fetch_data, not a DTO — use post["id"]
instead of post.id.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

market/app.py

@@ -186,7 +186,7 @@ def create_app() -> "Quart":
                 select(MarketPlace).where(
                     MarketPlace.slug == market_slug,
                     MarketPlace.container_type == "page",
-                    MarketPlace.container_id == post.id,
+                    MarketPlace.container_id == post["id"],
                     MarketPlace.deleted_at.is_(None),
                 )
             )