feat(export): Bestandsbuch für Tierarzneimittel nach Art. 108 VO (EU) 2019/6

- Treatment records supplier, purchase proof and prescribing vet, and
  keeps the apiary the colony stood at on the treatment day.
- Holder name and address in site settings (never in public output;
  regression test in public.service.spec).
- treatment-log.pdf: one sheet per apiary, identical treatments grouped,
  missing mandatory fields printed as FEHLT, uncertain locations marked.
- Shared PDF table helpers extracted from the record card.

Co-Authored-By: Claude Opus 5.5 (1M context) <[email protected]>

ApiCore-Frontend/src/app/(app)/apiaries/[id]/page.tsx

@@ -5,7 +5,7 @@ import { useParams } from "next/navigation";
 import { useMutation, useQuery } from "@tanstack/react-query";
 import { toast } from "sonner";
 import { fetchApiary } from "@/lib/apiaries/api";
-import { exportApiaryAnnualReportPdf } from "@/lib/export/api";
+import { exportApiaryAnnualReportPdf, exportTreatmentLogPdf } from "@/lib/export/api";
 import { QrCodeDialog } from "@/components/qr-code-dialog";
 import { DocumentUploadCard } from "@/components/document-upload-card";
 import { Button } from "@/components/ui/button";
@@ -26,6 +26,11 @@ export default function ApiaryDetailPage() {
     onError: () => toast.error("Jahresbericht konnte nicht exportiert werden"),
   });
 
+  const treatmentLogMutation = useMutation({
+    mutationFn: () => exportTreatmentLogPdf(CURRENT_YEAR, params.id),
+    onError: () => toast.error("Bestandsbuch konnte nicht erstellt werden. Bitte noch einmal versuchen."),
+  });
+
   if (isLoading) {
     return <p className="p-4 text-sm text-muted-foreground sm:p-6">Lädt…</p>;
   }
@@ -52,6 +57,13 @@ export default function ApiaryDetailPage() {
             >
               Neue Ernte
             </Button>
+            <Button
+              variant="outline"
+              disabled={treatmentLogMutation.isPending}
+              onClick={() => treatmentLogMutation.mutate()}
+            >
+              {treatmentLogMutation.isPending ? "Wird erstellt…" : `Bestandsbuch ${CURRENT_YEAR}`}
+            </Button>
             <Button
               variant="outline"
               disabled={exportReportMutation.isPending}

ApiCore-Frontend/src/app/(app)/colonies/[id]/treatment-edit-dialog.tsx

@@ -32,6 +32,9 @@ export function TreatmentEditDialog({ treatment }: { treatment: Treatment }) {
   const [method, setMethod] = useState(treatment.method ?? "");
   const [reason, setReason] = useState(treatment.reason ?? "");
   const [batchNumber, setBatchNumber] = useState(treatment.batchNumber ?? "");
+  const [supplier, setSupplier] = useState(treatment.supplier ?? "");
+  const [purchaseProof, setPurchaseProof] = useState(treatment.purchaseProof ?? "");
+  const [prescribingVet, setPrescribingVet] = useState(treatment.prescribingVet ?? "");
   const [notes, setNotes] = useState(treatment.notes ?? "");
   const [withdrawalPeriodDays, setWithdrawalPeriodDays] = useState(
     treatment.withdrawalPeriodDays?.toString() ?? "",
@@ -52,6 +55,9 @@ export function TreatmentEditDialog({ treatment }: { treatment: Treatment }) {
         batchNumber: batchNumber || undefined,
         notes: notes || undefined,
         withdrawalPeriodDays: withdrawalPeriodDays ? Number(withdrawalPeriodDays) : undefined,
+        supplier: supplier.trim(),
+        purchaseProof: purchaseProof.trim(),
+        prescribingVet: prescribingVet.trim(),
       }),
     onSuccess: () => {
       // After re-filing, both the colony it left and the one it joined
@@ -178,6 +184,42 @@ export function TreatmentEditDialog({ treatment }: { treatment: Treatment }) {
               onChange={(event) => setWithdrawalPeriodDays(event.target.value)}
             />
           </div>
+          <fieldset className="flex flex-col gap-3 rounded-xl border border-border p-3">
+            <legend className="px-1 text-sm font-medium">Für das Bestandsbuch</legend>
+            <p className="text-xs text-muted-foreground">
+              Pflicht bei jedem Tierarzneimittel, auch bei freiverkäuflichen Säuren (Art. 108
+              VO (EU) 2019/6). Belege 5 Jahre aufbewahren.
+            </p>
+            <div className="flex flex-col gap-2">
+              <Label htmlFor="treatment-edit-supplier">Lieferant (Name, Anschrift)</Label>
+              <Input
+                id="treatment-edit-supplier"
+                className="h-11"
+                placeholder="z. B. Imkereibedarf Muster, Hauptstr. 1, 86450 Altenmünster"
+                value={supplier}
+                onChange={(event) => setSupplier(event.target.value)}
+              />
+            </div>
+            <div className="flex flex-col gap-2">
+              <Label htmlFor="treatment-edit-proof">Beleg für den Erwerb</Label>
+              <Input
+                id="treatment-edit-proof"
+                className="h-11"
+                placeholder="z. B. Rechnung Nr. 4711 vom 01.08.2026"
+                value={purchaseProof}
+                onChange={(event) => setPurchaseProof(event.target.value)}
+              />
+            </div>
+            <div className="flex flex-col gap-2">
+              <Label htmlFor="treatment-edit-vet">Verschreibender Tierarzt (falls zutreffend)</Label>
+              <Input
+                id="treatment-edit-vet"
+                className="h-11"
+                value={prescribingVet}
+                onChange={(event) => setPrescribingVet(event.target.value)}
+              />
+            </div>
+          </fieldset>
           <div className="flex flex-col gap-2">
             <Label htmlFor="treatment-edit-notes">Notizen</Label>
             <Textarea

ApiCore-Frontend/src/app/(app)/settings/automation/page.tsx

@@ -26,7 +26,7 @@ const TABS: { value: Tab; label: string }[] = [
   { value: "webhooks", label: "Webhooks" },
   { value: "task-templates", label: "Wiederkehrende Aufgaben" },
   { value: "label-templates", label: "Etikettenvorlagen" },
-  { value: "social-media", label: "Social Media" },
+  { value: "social-media", label: "Stammdaten & Web" },
   { value: "rules", label: "Regeln" },
   { value: "calendar-sync", label: "Kalender-Sync" },
   { value: "api-keys", label: "API-Schlüssel" },

ApiCore-Frontend/src/app/(app)/settings/automation/social-media-tab.tsx

@@ -18,6 +18,8 @@ function WebsiteSettingsForm({ settings }: { settings: SiteSettings }) {
   const [instagramUrl, setInstagramUrl] = useState(settings.instagramUrl ?? "");
   const [tiktokUrl, setTiktokUrl] = useState(settings.tiktokUrl ?? "");
   const [websiteUrl, setWebsiteUrl] = useState(settings.websiteUrl ?? "");
+  const [holderName, setHolderName] = useState(settings.holderName ?? "");
+  const [holderAddress, setHolderAddress] = useState(settings.holderAddress ?? "");
 
   const mutation = useMutation({
     mutationFn: updateSiteSettings,
@@ -35,6 +37,8 @@ function WebsiteSettingsForm({ settings }: { settings: SiteSettings }) {
       instagramUrl,
       tiktokUrl,
       websiteUrl,
+      holderName,
+      holderAddress,
     });
   }
 
@@ -86,6 +90,28 @@ function WebsiteSettingsForm({ settings }: { settings: SiteSettings }) {
               onChange={(event) => setWebsiteUrl(event.target.value)}
             />
           </div>
+          <fieldset className="flex flex-col gap-3 rounded-xl border border-border p-3">
+            <legend className="px-1 text-sm font-medium">Bienenhalter (für das Bestandsbuch)</legend>
+            <p className="text-xs text-muted-foreground">
+              Erscheint nur im Bestandsbuch, nie auf öffentlichen Seiten.
+            </p>
+            <div className="flex flex-col gap-2">
+              <Label htmlFor="site-holder-name">Name</Label>
+              <Input
+                id="site-holder-name"
+                value={holderName}
+                onChange={(event) => setHolderName(event.target.value)}
+              />
+            </div>
+            <div className="flex flex-col gap-2">
+              <Label htmlFor="site-holder-address">Anschrift</Label>
+              <Input
+                id="site-holder-address"
+                value={holderAddress}
+                onChange={(event) => setHolderAddress(event.target.value)}
+              />
+            </div>
+          </fieldset>
           <Button type="submit" disabled={mutation.isPending}>
             {mutation.isPending ? "Wird gespeichert…" : "Speichern"}
           </Button>

ApiCore-Frontend/src/app/(app)/treatments/new/page.tsx

@@ -51,6 +51,9 @@ export default function NewTreatmentPage() {
   const [batchNumber, setBatchNumber] = useState("");
   const [notes, setNotes] = useState("");
   const [withdrawalPeriodDays, setWithdrawalPeriodDays] = useState("");
+  const [supplier, setSupplier] = useState("");
+  const [purchaseProof, setPurchaseProof] = useState("");
+  const [prescribingVet, setPrescribingVet] = useState("");
   const [error, setError] = useState<string | null>(null);
 
   // One key per opened form: a double tap or an offline retry of the
@@ -98,6 +101,9 @@ export default function NewTreatmentPage() {
       batchNumber: batchNumber || undefined,
       notes: notes || undefined,
       withdrawalPeriodDays: withdrawalPeriodDays ? Number(withdrawalPeriodDays) : undefined,
+      supplier: supplier.trim() || undefined,
+      purchaseProof: purchaseProof.trim() || undefined,
+      prescribingVet: prescribingVet.trim() || undefined,
     });
   }
 
@@ -229,6 +235,42 @@ export default function NewTreatmentPage() {
                 geerntet werden.
               </p>
             </div>
+            <fieldset className="flex flex-col gap-3 rounded-xl border border-border p-3">
+              <legend className="px-1 text-sm font-medium">Für das Bestandsbuch</legend>
+              <p className="text-xs text-muted-foreground">
+                Pflicht bei jedem Tierarzneimittel, auch bei freiverkäuflichen Säuren (Art. 108
+                VO (EU) 2019/6). Belege 5 Jahre aufbewahren.
+              </p>
+              <div className="flex flex-col gap-2">
+                <Label htmlFor="treatment-supplier">Lieferant (Name, Anschrift)</Label>
+                <Input
+                  id="treatment-supplier"
+                  className="h-11"
+                  placeholder="z. B. Imkereibedarf Muster, Hauptstr. 1, 86450 Altenmünster"
+                  value={supplier}
+                  onChange={(event) => setSupplier(event.target.value)}
+                />
+              </div>
+              <div className="flex flex-col gap-2">
+                <Label htmlFor="treatment-proof">Beleg für den Erwerb</Label>
+                <Input
+                  id="treatment-proof"
+                  className="h-11"
+                  placeholder="z. B. Rechnung Nr. 4711 vom 01.08.2026"
+                  value={purchaseProof}
+                  onChange={(event) => setPurchaseProof(event.target.value)}
+                />
+              </div>
+              <div className="flex flex-col gap-2">
+                <Label htmlFor="treatment-vet">Verschreibender Tierarzt (falls zutreffend)</Label>
+                <Input
+                  id="treatment-vet"
+                  className="h-11"
+                  value={prescribingVet}
+                  onChange={(event) => setPrescribingVet(event.target.value)}
+                />
+              </div>
+            </fieldset>
             <div className="flex flex-col gap-2">
               <Label htmlFor="treatment-notes">Notizen</Label>
               <Textarea

ApiCore-Frontend/src/lib/export/api.ts

@@ -49,6 +49,16 @@ export async function exportColonyRecordCardPdf(colonyId: string, code: string):
   downloadBlob(blob, filename);
 }
 
+/** Bestandsbuch (Art. 108 VO (EU) 2019/6): all treatments of a year, one sheet per apiary. */
+export async function exportTreatmentLogPdf(year: number, apiaryId?: string): Promise<void> {
+  const query = apiaryId ? `year=${year}&apiaryId=${apiaryId}` : `year=${year}`;
+  const { blob, filename } = await apiFetchBlob(
+    `/export/treatment-log.pdf?${query}`,
+    `bestandsbuch-${year}.pdf`,
+  );
+  downloadBlob(blob, filename);
+}
+
 export async function exportApiaryAnnualReportPdf(apiaryId: string, year: number): Promise<void> {
   const { blob, filename } = await apiFetchBlob(
     `/export/apiary-annual-report.pdf?apiaryId=${apiaryId}&year=${year}`,

ApiCore-Frontend/src/lib/site-settings/types.ts

@@ -4,6 +4,8 @@ export interface SiteSettings {
   instagramUrl: string | null;
   tiktokUrl: string | null;
   websiteUrl: string | null;
+  holderName: string | null;
+  holderAddress: string | null;
   updatedAt: string;
 }
 
@@ -12,4 +14,6 @@ export interface UpdateSiteSettingsInput {
   instagramUrl?: string;
   tiktokUrl?: string;
   websiteUrl?: string;
+  holderName?: string;
+  holderAddress?: string;
 }

ApiCore-Frontend/src/lib/treatments/types.ts

@@ -13,6 +13,9 @@ export interface Treatment {
   batchNumber: string | null;
   notes: string | null;
   withdrawalPeriodDays: number | null;
+  supplier: string | null;
+  purchaseProof: string | null;
+  prescribingVet: string | null;
   createdAt: string;
 }
 
@@ -29,6 +32,9 @@ export interface CreateTreatmentInput {
   batchNumber?: string;
   notes?: string;
   withdrawalPeriodDays?: number;
+  supplier?: string;
+  purchaseProof?: string;
+  prescribingVet?: string;
 }
 
 export interface UpdateTreatmentInput {
@@ -45,6 +51,9 @@ export interface UpdateTreatmentInput {
   batchNumber?: string;
   notes?: string;
   withdrawalPeriodDays?: number;
+  supplier?: string;
+  purchaseProof?: string;
+  prescribingVet?: string;
 }
 
 export interface WithdrawalStatus {