feat: implement community editing with audit logs and user attribution

Add created/updated tracking and edit logs to all wiki tables
Restrict create/update/delete operations to verified users
Display edit metadata on frontend detail and list views

frontend/src/views/ItemsList.vue

@@ -1,5 +1,6 @@
 <script setup lang="ts">
 import { computed, onMounted, ref, watch } from 'vue';
+import EditMeta from '../components/EditMeta.vue';
 import EntityChips from '../components/EntityChips.vue';
 import TagsSelect from '../components/TagsSelect.vue';
 import { api, type Item, type Options, type Recipe } from '../services/api';
@@ -94,6 +95,7 @@ watch([tab, itemQuery], loadItems);
       <RouterLink v-for="item in items" :key="item.id" class="entity-card" :to="`/items/${item.id}`">
         <h2>{{ item.name }}</h2>
         <p class="meta-line">{{ item.usage ? `${item.category.name} · ${item.usage.name}` : item.category.name }}</p>
+        <EditMeta :entity="item" />
         <EntityChips :items="item.tags" />
       </RouterLink>
     </div>
@@ -101,6 +103,7 @@ watch([tab, itemQuery], loadItems);
     <div v-else class="grid">
       <RouterLink v-for="item in recipes" :key="item.id" class="entity-card" :to="`/recipes/${item.id}`">
         <h2>{{ item.name }}</h2>
+        <EditMeta :entity="item" />
         <EntityChips :items="item.materials" />
       </RouterLink>
     </div>