feat: add website social link, fix herkunft origin display, GUI backup schedule, and format-based batch numbering

- SiteSettings gains websiteUrl (e.g. online shop link) alongside the
  existing social links, editable in Verwaltung > Automatisierung.
- /herkunft/[lot] now shows the apiary's Standort instead of its internal
  Name (so multiple apiaries at one location read as one origin), adds
  small icons per social link, and surfaces previously-fetched-but-unused
  data (Honigsorte, Abfülldatum, stat cards) to make the page a richer
  customer-facing info page.
- Backup schedule (path/cron/retention) is now also configurable via the
  GUI (Verwaltung > Backup), stored in a new BackupSettings singleton;
  an env var always wins over the GUI value per field, and the scheduler
  reloads its cron job live when GUI settings change.
- New Automatisierung rules let an admin define a format (e.g.
  "WH-{YYYY}-{SEQ:4}") that auto-generates HoneyBatch.batchNumber and
  BottlingBatch.lotNumber on creation, with an atomic per-rule sequence
  counter and a manual reset. Manual entry still works when the rule is
  inactive.

ApiCore-Backend/prisma/migrations/20260903120000_add_website_url_and_number_automation/migration.sql

@@ -0,0 +1,9 @@
+-- AlterEnum
+ALTER TYPE "AutomationTriggerType" ADD VALUE 'HONEY_BATCH_NUMBER_FORMAT';
+ALTER TYPE "AutomationTriggerType" ADD VALUE 'BOTTLING_LOT_NUMBER_FORMAT';
+
+-- AlterTable
+ALTER TABLE "AutomationRule" ADD COLUMN     "sequenceValue" INTEGER NOT NULL DEFAULT 0;
+
+-- AlterTable
+ALTER TABLE "SiteSettings" ADD COLUMN     "websiteUrl" TEXT;

ApiCore-Backend/prisma/migrations/20260903120100_add_backup_settings/migration.sql

@@ -0,0 +1,10 @@
+-- CreateTable
+CREATE TABLE "BackupSettings" (
+    "id" TEXT NOT NULL DEFAULT 'singleton',
+    "storagePath" TEXT,
+    "cronSchedule" TEXT,
+    "retentionCount" INTEGER,
+    "updatedAt" TIMESTAMP(3) NOT NULL,
+
+    CONSTRAINT "BackupSettings_pkey" PRIMARY KEY ("id")
+);