feat(trash): TrashView page, nav links, and g+x shortcut

frontend/src/components/AppHeader.vue

@@ -6,7 +6,7 @@ import { useShortcuts } from "@/composables/useShortcuts";
 import { useAuthStore } from "@/stores/auth";
 import AppLogo from "@/components/AppLogo.vue";
 import NotificationBell from "@/components/NotificationBell.vue";
-import { Sun, Moon, Settings } from "lucide-vue-next";
+import { Sun, Moon, Settings, Trash2 } from "lucide-vue-next";
 
 const { theme, toggleTheme } = useTheme();
 const { toggleShortcuts } = useShortcuts();
@@ -63,6 +63,11 @@ router.afterEach(() => {
           <Moon v-else :size="16" />
         </button>
 
+        <!-- Trash link -->
+        <router-link to="/trash" class="btn-icon" aria-label="Trash" title="Trash">
+          <Trash2 :size="16" />
+        </router-link>
+
         <!-- Settings link -->
         <router-link to="/settings" class="btn-icon" aria-label="Settings" title="Settings">
           <Settings :size="16" />
@@ -91,6 +96,7 @@ router.afterEach(() => {
       <router-link to="/rules" class="nav-link">Rulebooks</router-link>
       <router-link to="/shared" class="nav-link">Shared</router-link>
       <div class="mobile-divider"></div>
+      <router-link to="/trash" class="nav-link">Trash</router-link>
       <router-link to="/settings" class="nav-link">Settings</router-link>
       <div class="mobile-divider"></div>
       <div class="mobile-actions">