feat(operations): improve reservation and check-in flows

backend/shows/admin.py

@@ -1,4 +1,6 @@
 from django.contrib import admin
+from django.urls import reverse
+from django.utils.html import format_html
 
 from .models import Performance, Show, Venue
 
@@ -32,6 +34,7 @@ class PerformanceAdmin(admin.ModelAdmin):
         "manually_occupied_seats",
         "available_seats_display",
         "is_booking_enabled",
+        "create_reservation_link",
     )
     list_filter = ("is_booking_enabled", "starts_at", "show", "venue")
     search_fields = ("show__title", "venue__name", "venue__city")
@@ -49,3 +52,15 @@ class PerformanceAdmin(admin.ModelAdmin):
         ):
             return "-"
         return obj.available_seats()
+
+    @admin.display(description="Manual reservation")
+    def create_reservation_link(self, obj):
+        if not getattr(obj, "pk", None):
+            return "-"
+
+        url = reverse("admin:bookings_reservation_add")
+        return format_html(
+            '<a href="{}?performance={}">Create reservation</a>',
+            url,
+            obj.pk,
+        )