Replace HTTP API and MarketPlace imports with service calls

Calendar entries route now uses services.cart.cart_summary() instead of
internal HTTP API call to cart app. Market CRUD delegates to
services.market.create_marketplace() / soft_delete_marketplace().
Updates shared submodule.

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

bp/calendar_entries/routes.py

@@ -219,10 +219,14 @@ def register():
             select(sa_func.count()).select_from(CalendarEntry).where(*cal_filters)
         ) or 0
 
-        # Get product cart count from API (committed data only, which is fine)
-        from shared.infrastructure.internal_api import get as api_get
-        cart_data = await api_get("cart", "/internal/cart/summary", forward_session=True)
-        product_count = cart_data.get("count", 0) if cart_data else 0
+        # Get product cart count via service (same DB, no HTTP needed)
+        from shared.infrastructure.cart_identity import current_cart_identity
+        from shared.services.registry import services
+        ident = current_cart_identity()
+        cart_summary = await services.cart.cart_summary(
+            g.s, user_id=ident["user_id"], session_id=ident["session_id"],
+        )
+        product_count = cart_summary.count
         total_count = product_count + cal_count
 
         html = await render_template("_types/day/_main_panel.html")