feat: replace gear dropdown with direct settings link

Remove the gear dropdown menu from AppHeader; cog icon is now a plain
router-link to /settings. Admin-only /admin/users and /admin/logs routes
are replaced with redirects to /settings. Mobile menu admin links removed.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

frontend/src/components/AppHeader.vue

@@ -1,5 +1,5 @@
 <script setup lang="ts">
-import { ref, computed, onMounted, onUnmounted } from "vue";
+import { ref, computed } from "vue";
 import { useRouter, useRoute } from "vue-router";
 import { useTheme } from "@/composables/useTheme";
 import { useShortcuts } from "@/composables/useShortcuts";
@@ -17,8 +17,6 @@ const route = useRoute();
 const isChatActive = computed(() => route.path.startsWith("/chat"));
 
 const mobileMenuOpen = ref(false);
-const gearOpen = ref(false);
-const gearMenuRef = ref<HTMLElement | null>(null);
 
 const statusShortLabel = computed(() => {
   if (chatStore.ollamaStatus === "unavailable") return "Offline";
@@ -51,16 +49,6 @@ function toggleMobileMenu() {
   mobileMenuOpen.value = !mobileMenuOpen.value;
 }
 
-function toggleGear() {
-  gearOpen.value = !gearOpen.value;
-}
-
-function handleClickOutside(e: MouseEvent) {
-  if (gearMenuRef.value && !gearMenuRef.value.contains(e.target as Node)) {
-    gearOpen.value = false;
-  }
-}
-
 async function handleLogout() {
   await authStore.logout();
   mobileMenuOpen.value = false;
@@ -69,11 +57,7 @@ async function handleLogout() {
 
 router.afterEach(() => {
   mobileMenuOpen.value = false;
-  gearOpen.value = false;
 });
-
-onMounted(() => document.addEventListener("click", handleClickOutside));
-onUnmounted(() => document.removeEventListener("click", handleClickOutside));
 </script>
 
 <template>
@@ -107,20 +91,13 @@ onUnmounted(() => document.removeEventListener("click", handleClickOutside));
           {{ theme === "dark" ? "\u2600" : "\u263E" }}
         </button>
 
-        <!-- Gear dropdown -->
+        <!-- Settings link -->
-        <div class="gear-menu" ref="gearMenuRef">
+        <router-link to="/settings" class="btn-icon" aria-label="Settings" title="Settings">
-          <button class="btn-icon btn-gear" @click.stop="toggleGear" :class="{ active: gearOpen }" title="Settings">
           <svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
             <circle cx="12" cy="12" r="3"/>
             <path d="M19.4 15a1.65 1.65 0 0 0 .33 1.82l.06.06a2 2 0 0 1-2.83 2.83l-.06-.06a1.65 1.65 0 0 0-1.82-.33 1.65 1.65 0 0 0-1 1.51V21a2 2 0 0 1-4 0v-.09A1.65 1.65 0 0 0 9 19.4a1.65 1.65 0 0 0-1.82.33l-.06.06a2 2 0 0 1-2.83-2.83l.06-.06A1.65 1.65 0 0 0 4.68 15a1.65 1.65 0 0 0-1.51-1H3a2 2 0 0 1 0-4h.09A1.65 1.65 0 0 0 4.6 9a1.65 1.65 0 0 0-.33-1.82l-.06-.06a2 2 0 0 1 2.83-2.83l.06.06A1.65 1.65 0 0 0 9 4.68a1.65 1.65 0 0 0 1-1.51V3a2 2 0 0 1 4 0v.09a1.65 1.65 0 0 0 1 1.51 1.65 1.65 0 0 0 1.82-.33l.06-.06a2 2 0 0 1 2.83 2.83l-.06.06A1.65 1.65 0 0 0 19.4 9a1.65 1.65 0 0 0 1.51 1H21a2 2 0 0 1 0 4h-.09a1.65 1.65 0 0 0-1.51 1z"/>
           </svg>
-          </button>
+        </router-link>
-          <div v-if="gearOpen" class="gear-dropdown">
-            <router-link to="/settings" class="gear-item">Settings</router-link>
-            <router-link v-if="authStore.isAdmin" to="/admin/users" class="gear-item">Users</router-link>
-            <router-link v-if="authStore.isAdmin" to="/admin/logs" class="gear-item">Logs</router-link>
-          </div>
-        </div>
 
         <div class="user-info">
           <span class="username">{{ authStore.user?.username }}</span>
@@ -146,8 +123,6 @@ onUnmounted(() => document.removeEventListener("click", handleClickOutside));
       <router-link to="/graph" class="nav-link">Graph</router-link>
       <div class="mobile-divider"></div>
       <router-link to="/settings" class="nav-link">Settings</router-link>
-      <router-link v-if="authStore.isAdmin" to="/admin/users" class="nav-link">Users</router-link>
-      <router-link v-if="authStore.isAdmin" to="/admin/logs" class="nav-link">Logs</router-link>
       <div class="mobile-divider"></div>
       <div class="mobile-actions">
         <span class="status-indicator" :class="statusClass" :title="statusLabel">
@@ -281,40 +256,6 @@ onUnmounted(() => document.removeEventListener("click", handleClickOutside));
   border-color: var(--color-primary);
 }
 
-/* Gear dropdown */
-.gear-menu {
-  position: relative;
-}
-.gear-dropdown {
-  position: absolute;
-  top: calc(100% + 6px);
-  right: 0;
-  background: var(--color-bg-card);
-  border: 1px solid var(--color-border);
-  border-radius: var(--radius-md);
-  box-shadow: 0 4px 16px var(--color-shadow, rgba(0,0,0,0.15));
-  min-width: 140px;
-  z-index: 200;
-  overflow: hidden;
-  display: flex;
-  flex-direction: column;
-}
-.gear-item {
-  padding: 0.55rem 0.9rem;
-  font-size: 0.875rem;
-  color: var(--color-text-secondary);
-  text-decoration: none;
-  transition: background 0.12s, color 0.12s;
-}
-.gear-item:hover {
-  background: var(--color-bg-secondary);
-  color: var(--color-primary);
-}
-.gear-item.router-link-active {
-  color: var(--color-primary);
-  font-weight: 600;
-}
-
 /* User info */
 .user-info {
   display: flex;

frontend/src/router/index.ts

@@ -110,16 +110,8 @@ const router = createRouter({
       name: "settings",
       component: () => import("@/views/SettingsView.vue"),
     },
-    {
+    { path: "/admin/users", redirect: "/settings" },
-      path: "/admin/users",
+    { path: "/admin/logs", redirect: "/settings" },
-      name: "admin-users",
-      component: () => import("@/views/UserManagementView.vue"),
-    },
-    {
-      path: "/admin/logs",
-      name: "admin-logs",
-      component: () => import("@/views/LogsView.vue"),
-    },
   ],
 });