feat(tui): Edit-Screen für Lagerort-Bearbeitung (Name, Temperaturbereich)

StorageLocationEditScreen mit Formular für Name und Temperaturbereich.
StorageType wird als immutable angezeigt. Erreichbar über [Bearbeiten] im
DetailScreen. Vervollständigt Story 1.2 im Frontend.

frontend/apps/cli/src/App.tsx

@@ -36,6 +36,7 @@ import { InventoryMenu } from './components/inventory/InventoryMenu.js';
 import { StorageLocationListScreen } from './components/inventory/StorageLocationListScreen.js';
 import { StorageLocationCreateScreen } from './components/inventory/StorageLocationCreateScreen.js';
 import { StorageLocationDetailScreen } from './components/inventory/StorageLocationDetailScreen.js';
+import { StorageLocationEditScreen } from './components/inventory/StorageLocationEditScreen.js';
 import { StockBatchEntryScreen } from './components/inventory/StockBatchEntryScreen.js';
 import { AddBatchScreen } from './components/inventory/AddBatchScreen.js';
 // Produktion
@@ -114,6 +115,7 @@ function ScreenRouter() {
       {current === 'storage-location-list' && <StorageLocationListScreen />}
       {current === 'storage-location-create' && <StorageLocationCreateScreen />}
       {current === 'storage-location-detail' && <StorageLocationDetailScreen />}
+      {current === 'storage-location-edit' && <StorageLocationEditScreen />}
       {current === 'stock-batch-entry' && <StockBatchEntryScreen />}
       {current === 'stock-add-batch' && <AddBatchScreen />}
       {current === 'stock-list' && <StockListScreen />}

frontend/apps/cli/src/components/inventory/StorageLocationDetailScreen.tsx

@@ -10,10 +10,11 @@ import { SuccessDisplay } from '../shared/SuccessDisplay.js';
 import { ConfirmDialog } from '../shared/ConfirmDialog.js';
 import { client } from '../../utils/api-client.js';
 
-type MenuAction = 'toggle-status' | 'back';
+type MenuAction = 'edit' | 'toggle-status' | 'back';
 type Mode = 'menu' | 'confirm-status';
 
 const MENU_ITEMS: { id: MenuAction; label: (loc: StorageLocationDTO) => string }[] = [
+  { id: 'edit', label: () => '[Bearbeiten]' },
   { id: 'toggle-status', label: (loc) => loc.active ? '[Deaktivieren]' : '[Aktivieren]' },
   { id: 'back', label: () => '[Zurück]' },
 ];
@@ -23,7 +24,7 @@ function errorMessage(err: unknown): string {
 }
 
 export function StorageLocationDetailScreen() {
-  const { params, back } = useNavigation();
+  const { params, back, navigate } = useNavigation();
   const storageLocationId = params['storageLocationId'] ?? '';
   const { activateStorageLocation, deactivateStorageLocation } = useStorageLocations();
 
@@ -61,6 +62,9 @@ export function StorageLocationDetailScreen() {
     if (!item) return;
 
     switch (item.id) {
+      case 'edit':
+        navigate('storage-location-edit', { storageLocationId: location.id });
+        break;
       case 'toggle-status':
         setMode('confirm-status');
         break;

frontend/apps/cli/src/components/inventory/StorageLocationEditScreen.tsx

@@ -0,0 +1,159 @@
+import React, { useCallback, useEffect, useState } from 'react';
+import { Box, Text, useInput } from 'ink';
+import type { StorageLocationDTO, StorageType } from '@effigenix/api-client';
+import { STORAGE_TYPE_LABELS } from '@effigenix/api-client';
+import { useNavigation } from '../../state/navigation-context.js';
+import { useStorageLocations } from '../../hooks/useStorageLocations.js';
+import { FormInput } from '../shared/FormInput.js';
+import { LoadingSpinner } from '../shared/LoadingSpinner.js';
+import { ErrorDisplay } from '../shared/ErrorDisplay.js';
+import { client } from '../../utils/api-client.js';
+
+type Field = 'name' | 'minTemperature' | 'maxTemperature';
+const FIELDS: Field[] = ['name', 'minTemperature', 'maxTemperature'];
+
+const FIELD_LABELS: Record<Field, string> = {
+  name: 'Name',
+  minTemperature: 'Min. Temperatur (°C)',
+  maxTemperature: 'Max. Temperatur (°C)',
+};
+
+function errorMessage(err: unknown): string {
+  return err instanceof Error ? err.message : 'Unbekannter Fehler';
+}
+
+export function StorageLocationEditScreen() {
+  const { params, replace, back } = useNavigation();
+  const storageLocationId = params['storageLocationId'] ?? '';
+  const { updateStorageLocation } = useStorageLocations();
+
+  const [location, setLocation] = useState<StorageLocationDTO | null>(null);
+  const [loading, setLoading] = useState(true);
+  const [saving, setSaving] = useState(false);
+  const [error, setError] = useState<string | null>(null);
+  const [values, setValues] = useState<Record<Field, string>>({
+    name: '',
+    minTemperature: '',
+    maxTemperature: '',
+  });
+  const [activeField, setActiveField] = useState<Field>('name');
+  const [fieldErrors, setFieldErrors] = useState<Partial<Record<Field, string>>>({});
+
+  const loadLocation = useCallback(() => {
+    setLoading(true);
+    setError(null);
+    client.storageLocations.getById(storageLocationId)
+      .then((loc) => {
+        setLocation(loc);
+        setValues({
+          name: loc.name,
+          minTemperature: loc.temperatureRange?.minTemperature?.toString() ?? '',
+          maxTemperature: loc.temperatureRange?.maxTemperature?.toString() ?? '',
+        });
+        setLoading(false);
+      })
+      .catch((err: unknown) => { setError(errorMessage(err)); setLoading(false); });
+  }, [storageLocationId]);
+
+  useEffect(() => { if (storageLocationId) loadLocation(); }, [loadLocation, storageLocationId]);
+
+  const setField = (field: Field) => (value: string) => {
+    setValues((v) => ({ ...v, [field]: value }));
+  };
+
+  useInput((_input, key) => {
+    if (loading || saving) return;
+
+    if (key.tab || key.downArrow) {
+      setActiveField((f) => {
+        const idx = FIELDS.indexOf(f);
+        return FIELDS[(idx + 1) % FIELDS.length] ?? f;
+      });
+    }
+    if (key.upArrow) {
+      setActiveField((f) => {
+        const idx = FIELDS.indexOf(f);
+        return FIELDS[(idx - 1 + FIELDS.length) % FIELDS.length] ?? f;
+      });
+    }
+    if (key.escape) back();
+  });
+
+  const handleSubmit = async () => {
+    const errors: Partial<Record<Field, string>> = {};
+    if (!values.name.trim()) errors.name = 'Name ist erforderlich.';
+    setFieldErrors(errors);
+    if (Object.keys(errors).length > 0) return;
+
+    setSaving(true);
+    setError(null);
+    const result = await updateStorageLocation(storageLocationId, {
+      ...(values.name.trim() ? { name: values.name.trim() } : {}),
+      ...(values.minTemperature.trim() ? { minTemperature: values.minTemperature.trim() } : {}),
+      ...(values.maxTemperature.trim() ? { maxTemperature: values.maxTemperature.trim() } : {}),
+    });
+    setSaving(false);
+
+    if (result) {
+      replace('storage-location-detail', { storageLocationId });
+    } else {
+      setError('Speichern fehlgeschlagen.');
+    }
+  };
+
+  const handleFieldSubmit = (field: Field) => (_value: string) => {
+    const idx = FIELDS.indexOf(field);
+    if (idx < FIELDS.length - 1) {
+      setActiveField(FIELDS[idx + 1] ?? field);
+    } else {
+      void handleSubmit();
+    }
+  };
+
+  if (loading) return <LoadingSpinner label="Lade Lagerort..." />;
+  if (error && !location) return <ErrorDisplay message={error} onDismiss={back} />;
+  if (!location) return <Text color="red">Lagerort nicht gefunden.</Text>;
+
+  const typeName = STORAGE_TYPE_LABELS[location.storageType as StorageType] ?? location.storageType;
+
+  if (saving) {
+    return (
+      <Box flexDirection="column" alignItems="center" paddingY={2}>
+        <LoadingSpinner label="Lagerort wird gespeichert..." />
+      </Box>
+    );
+  }
+
+  return (
+    <Box flexDirection="column" gap={1}>
+      <Text color="cyan" bold>Lagerort bearbeiten: {location.name}</Text>
+      {error && <ErrorDisplay message={error} onDismiss={() => setError(null)} />}
+
+      <Box gap={2}>
+        <Text color="gray">Lagertyp:</Text>
+        <Text>{typeName}</Text>
+        <Text color="gray" dimColor>(nicht änderbar)</Text>
+      </Box>
+
+      <Box flexDirection="column" gap={1} width={60}>
+        {FIELDS.map((field) => (
+          <FormInput
+            key={field}
+            label={FIELD_LABELS[field]}
+            value={values[field]}
+            onChange={setField(field)}
+            onSubmit={handleFieldSubmit(field)}
+            focus={activeField === field}
+            {...(fieldErrors[field] ? { error: fieldErrors[field] } : {})}
+          />
+        ))}
+      </Box>
+
+      <Box marginTop={1}>
+        <Text color="gray" dimColor>
+          Tab/↑↓ Feld wechseln · Enter auf letztem Feld speichern · Escape Abbrechen
+        </Text>
+      </Box>
+    </Box>
+  );
+}

frontend/apps/cli/src/state/navigation-context.tsx

@@ -33,6 +33,7 @@ export type Screen =
   | 'storage-location-list'
   | 'storage-location-create'
   | 'storage-location-detail'
+  | 'storage-location-edit'
   | 'stock-batch-entry'
   | 'stock-add-batch'
   | 'stock-list'