feat(frontend): TUI-Screens für Rezept-Filter, Archivierung und Chargen-Einbuchung

Production: Rezeptliste mit Status-Filter (Draft/Active/Archived), Rezept
archivieren für aktive Rezepte, list() gibt RecipeSummaryDTO zurück.
Inventory: Charge einbuchen (AddBatch) mit neuem Stocks-Resource und Screens.

frontend/apps/cli/src/hooks/useStocks.ts

@@ -0,0 +1,41 @@
+import { useState, useCallback } from 'react';
+import type { StockBatchDTO, AddStockBatchRequest } from '@effigenix/api-client';
+import { client } from '../utils/api-client.js';
+
+interface StocksState {
+  loading: boolean;
+  error: string | null;
+}
+
+function errorMessage(err: unknown): string {
+  return err instanceof Error ? err.message : 'Unbekannter Fehler';
+}
+
+export function useStocks() {
+  const [state, setState] = useState<StocksState>({
+    loading: false,
+    error: null,
+  });
+
+  const addBatch = useCallback(async (stockId: string, request: AddStockBatchRequest): Promise<StockBatchDTO | null> => {
+    setState({ loading: true, error: null });
+    try {
+      const batch = await client.stocks.addBatch(stockId, request);
+      setState({ loading: false, error: null });
+      return batch;
+    } catch (err) {
+      setState({ loading: false, error: errorMessage(err) });
+      return null;
+    }
+  }, []);
+
+  const clearError = useCallback(() => {
+    setState((s) => ({ ...s, error: null }));
+  }, []);
+
+  return {
+    ...state,
+    addBatch,
+    clearError,
+  };
+}