Merge branch 'worktree-agent-ae59040b377a324cb'

# Conflicts:
#	GerbilManagerWebAPI/ApplicationContext.cs
#	GerbilManagerWebAPI/Program.cs
#	gerbil-manager-web/e2e/mock-data.ts
#	gerbil-manager-web/src/pages/GerbilDetailPage.tsx
#	gerbil-manager-web/src/strings/de.ts

gerbil-manager-web/src/pages/GerbilDetailPage.tsx

@@ -11,6 +11,7 @@ import { fromDisplayString, genotypeToFarbschlag, displayGenotypeSafe } from '..
 import type { Gender, GerbilStatus } from '../api/types'
 import FarbschlagImage from '../components/FarbschlagImage'
 import GerbilAcquisitionSection from '../components/GerbilAcquisitionSection'
+import GerbilExhibitionsTab from '../components/GerbilExhibitionsTab'
 import GerbilHealthTab from '../components/GerbilHealthTab'
 import GerbilPhotosTab from '../components/GerbilPhotosTab'
 import GerbilProfilePhoto from '../components/GerbilProfilePhoto'
@@ -21,7 +22,7 @@ import { useGerbilName } from '../components/breederSuffix'
 import { useToast } from '../components/toast'
 import './rennmausakte.css'
 
-type DetailTab = 'photos' | 'health' | 'weight'
+type DetailTab = 'photos' | 'health' | 'weight' | 'exhibitions'
 
 // DESIGN (Rennmausakte): per-status colours for the hero status badge.
 const STATUS_COLORS: Record<GerbilStatus, string> = {
@@ -476,7 +477,7 @@ export default function GerbilDetailPage() {
         <section className="ak-card">
           <h2 className="visually-hidden">{t.detail.moreData}</h2>
           <div className="ak-tabs" role="tablist">
-            {(['photos', 'health', 'weight'] as const).map((key) => (
+            {(['photos', 'health', 'weight', 'exhibitions'] as const).map((key) => (
               <button
                 key={key}
                 type="button"
@@ -493,6 +494,12 @@ export default function GerbilDetailPage() {
             {tab === 'photos' && <GerbilPhotosTab gerbilId={g.id} />}
             {tab === 'health' && <GerbilHealthTab gerbilId={g.id} />}
             {tab === 'weight' && <GerbilWeightTab gerbilId={g.id} />}
+            {tab === 'exhibitions' && (
+              <GerbilExhibitionsTab
+                gerbilId={g.id}
+                entityName={gerbilName(g) || de.pages.gerbils.nameless}
+              />
+            )}
           </div>
         </section>
       </div>