Merge branch 'worktree-agent-a36d202be311b9289'

# Conflicts:
#	GerbilManagerWebAPI/ApplicationContext.cs
#	GerbilManagerWebAPI/Program.cs
#	gerbil-manager-web/e2e/mock-data.ts

gerbil-manager-web/e2e/mock-data.ts

@@ -87,6 +87,8 @@ export interface MockDb {
   }
   // ERWERB: Erwerb/Kauf je Tier (Kaufdatum, Preis, Notiz) — /acquisitions
   acquisitions: Record<string, unknown>[]
+  // ABGABE-STATUS: Reservierungs-/Abgabe-Status (POST/PUT/DELETE /reservations)
+  reservations: Record<string, unknown>[]
 }
 
 function gerbil(
@@ -544,5 +546,50 @@ export function seedDb(): MockDb {
       },
     },
     acquisitions: [],
+    // ABGABE-STATUS: eine reservierte + eine abgegebene + eine verfügbare Vormerkung.
+    reservations: [
+      {
+        id: 'res-reserviert',
+        gerbilId: 'sale-balu',
+        gerbilName: 'Balu Abgabe',
+        status: 'reserviert',
+        reservedForContactId: 'con-huber',
+        contactName: 'Familie Huber',
+        appointmentDate: '2026-07-01T00:00:00Z',
+        price: 25,
+        note: 'Käfig wird mitgebracht.',
+        handedOverDate: null,
+        createdAt: '2026-06-15T09:00:00Z',
+        updatedAt: '2026-06-15T09:00:00Z',
+      },
+      {
+        id: 'res-abgegeben',
+        gerbilId: 'pup-abgabe',
+        gerbilName: 'Pippa',
+        status: 'abgegeben',
+        reservedForContactId: 'con-huber',
+        contactName: 'Familie Huber',
+        appointmentDate: null,
+        price: 20,
+        note: null,
+        handedOverDate: '2025-05-01T00:00:00Z',
+        createdAt: '2025-04-20T09:00:00Z',
+        updatedAt: '2025-05-01T09:00:00Z',
+      },
+      {
+        id: 'res-verfuegbar',
+        gerbilId: 'sale-benny',
+        gerbilName: 'Benny Abgabe',
+        status: 'verfuegbar',
+        reservedForContactId: null,
+        contactName: null,
+        appointmentDate: null,
+        price: null,
+        note: null,
+        handedOverDate: null,
+        createdAt: '2026-06-16T09:00:00Z',
+        updatedAt: '2026-06-16T09:00:00Z',
+      },
+    ],
   }
 }