feat(tui): Produktionschargen und Bestandsverwaltung in TUI einbauen

Chargen: Liste mit Statusfilter, Planen, Starten, Verbrauch erfassen,
Abschließen und Stornieren. Bestände: Liste, Anlegen, Detailansicht
mit Chargen sperren/entsperren/entfernen. Types, API-Client, Hooks,
Navigation und Screens für beide Bounded Contexts vollständig ergänzt.

frontend/packages/api-client/src/resources/batches.ts

@@ -0,0 +1,81 @@
+/** Batches resource – Production BC. */
+
+import type { AxiosInstance } from 'axios';
+import type {
+  BatchDTO,
+  BatchSummaryDTO,
+  ConsumptionDTO,
+  PlanBatchRequest,
+  CompleteBatchRequest,
+  RecordConsumptionRequest,
+  CancelBatchRequest,
+} from '@effigenix/types';
+
+export type BatchStatus = 'PLANNED' | 'IN_PRODUCTION' | 'COMPLETED' | 'CANCELLED';
+
+export const BATCH_STATUS_LABELS: Record<BatchStatus, string> = {
+  PLANNED: 'Geplant',
+  IN_PRODUCTION: 'In Produktion',
+  COMPLETED: 'Abgeschlossen',
+  CANCELLED: 'Storniert',
+};
+
+export type {
+  BatchDTO,
+  BatchSummaryDTO,
+  ConsumptionDTO,
+  PlanBatchRequest,
+  CompleteBatchRequest,
+  RecordConsumptionRequest,
+  CancelBatchRequest,
+};
+
+const BASE = '/api/production/batches';
+
+export function createBatchesResource(client: AxiosInstance) {
+  return {
+    async list(status?: BatchStatus): Promise<BatchSummaryDTO[]> {
+      const params: Record<string, string> = {};
+      if (status) params.status = status;
+      const res = await client.get<BatchSummaryDTO[]>(BASE, { params });
+      return res.data;
+    },
+
+    async getById(id: string): Promise<BatchDTO> {
+      const res = await client.get<BatchDTO>(`${BASE}/${id}`);
+      return res.data;
+    },
+
+    async getByNumber(batchNumber: string): Promise<BatchDTO> {
+      const res = await client.get<BatchDTO>(`${BASE}/by-number/${batchNumber}`);
+      return res.data;
+    },
+
+    async plan(request: PlanBatchRequest): Promise<BatchDTO> {
+      const res = await client.post<BatchDTO>(BASE, request);
+      return res.data;
+    },
+
+    async start(id: string): Promise<BatchDTO> {
+      const res = await client.post<BatchDTO>(`${BASE}/${id}/start`);
+      return res.data;
+    },
+
+    async recordConsumption(id: string, request: RecordConsumptionRequest): Promise<ConsumptionDTO> {
+      const res = await client.post<ConsumptionDTO>(`${BASE}/${id}/consumptions`, request);
+      return res.data;
+    },
+
+    async complete(id: string, request: CompleteBatchRequest): Promise<BatchDTO> {
+      const res = await client.post<BatchDTO>(`${BASE}/${id}/complete`, request);
+      return res.data;
+    },
+
+    async cancel(id: string, request: CancelBatchRequest): Promise<BatchDTO> {
+      const res = await client.post<BatchDTO>(`${BASE}/${id}/cancel`, request);
+      return res.data;
+    },
+  };
+}
+
+export type BatchesResource = ReturnType<typeof createBatchesResource>;