feat(#13): open item images in full-screen preview modal

src/components/ItemCard.js

@@ -8,7 +8,7 @@ function statusAccent(status) {
   return STATUS_COLORS[status] || '#64748b';
 }
 
-export default function ItemCard({ item, onEdit, onDelete, onQuickPack, onQuickUnpack }) {
+export default function ItemCard({ item, onEdit, onDelete, onQuickPack, onQuickUnpack, onOpenImage }) {
   const isPacked = item.status === 'packed';
   const isUnpacked = item.status === 'unpacked';
 
@@ -18,7 +18,9 @@ export default function ItemCard({ item, onEdit, onDelete, onQuickPack, onQuickU
 
       <View style={styles.itemThumbWrap}>
         {item.imageUri ? (
-          <Image source={{ uri: item.imageUri }} style={styles.itemThumbSmall} />
+          <Pressable onPress={() => onOpenImage?.(item.imageUri)}>
+            <Image source={{ uri: item.imageUri }} style={styles.itemThumbSmall} />
+          </Pressable>
         ) : (
           <View style={styles.itemThumbPlaceholder}>
             <Text style={styles.itemThumbPlaceholderText}>🧳</Text>

src/styles.js

@@ -517,6 +517,35 @@ export const styles = StyleSheet.create({
     borderRadius: 10,
     backgroundColor: '#111827',
   },
+  imagePreviewBackdrop: {
+    flex: 1,
+    backgroundColor: 'rgba(2,6,23,0.88)',
+    alignItems: 'center',
+    justifyContent: 'center',
+    paddingHorizontal: 14,
+  },
+  imagePreviewCard: {
+    width: '100%',
+    maxWidth: 460,
+    borderRadius: 14,
+    borderWidth: 1,
+    borderColor: '#334155',
+    backgroundColor: '#0f172a',
+    padding: 10,
+    gap: 8,
+  },
+  imagePreviewImage: {
+    width: '100%',
+    height: 360,
+    borderRadius: 10,
+    backgroundColor: '#0b1220',
+  },
+  imagePreviewHint: {
+    color: '#93c5fd',
+    textAlign: 'center',
+    fontSize: 12,
+    fontWeight: '600',
+  },
 
   tabBarWrap: {
     position: 'absolute',

src/tabs/ItemsTab.js

@@ -1,5 +1,5 @@
 import React, { useMemo, useState } from 'react';
-import { Pressable, Text, View } from 'react-native';
+import { Image, Modal, Pressable, Text, View } from 'react-native';
 import ItemCard from '../components/ItemCard';
 import { ITEM_STATUSES } from '../constants';
 import { styles } from '../styles';
@@ -16,6 +16,7 @@ export default function ItemsTab({
 }) {
   const [statusFilter, setStatusFilter] = useState('all');
   const [categoryFilter, setCategoryFilter] = useState('all');
+  const [imagePreviewUri, setImagePreviewUri] = useState('');
 
   const categories = useMemo(
     () => Array.from(new Set(selectedTripItems.map((item) => item.category?.trim()).filter(Boolean))).sort((a, b) => a.localeCompare(b)),
@@ -100,10 +101,20 @@ export default function ItemsTab({
           onDelete={deleteItem}
           onQuickPack={() => quickSetItemStatus(item.id, 'packed')}
           onQuickUnpack={() => quickSetItemStatus(item.id, 'unpacked')}
+          onOpenImage={(uri) => setImagePreviewUri(uri)}
         />
       ))}
 
       {selectedTripItems.length > 0 && filteredItems.length === 0 ? <Text style={styles.muted}>No items match the current filters.</Text> : null}
+
+      <Modal visible={!!imagePreviewUri} transparent animationType="fade">
+        <Pressable style={styles.imagePreviewBackdrop} onPress={() => setImagePreviewUri('')}>
+          <Pressable style={styles.imagePreviewCard} onPress={() => {}}>
+            {imagePreviewUri ? <Image source={{ uri: imagePreviewUri }} style={styles.imagePreviewImage} resizeMode="contain" /> : null}
+            <Text style={styles.imagePreviewHint}>Tap outside to close</Text>
+          </Pressable>
+        </Pressable>
+      </Modal>
     </View>
   );
 }