fix(frontend): add Login option to server detail page Actions dropdown

Use unified health.action to show Login button consistently with
ServerCard.vue, replacing the narrow needsOAuth check that only
matched errors containing 'authorization'.

Author: technicalpickles

frontend/src/views/ServerDetail.vue

@@ -80,10 +80,10 @@
                   {{ isHttpProtocol ? 'Reconnect' : 'Restart' }}
                 </button>
               </li>
-              <li v-if="needsOAuth">
+              <li v-if="healthAction === 'login'">
                 <button @click="triggerOAuth" :disabled="actionLoading">
                   <span v-if="actionLoading" class="loading loading-spinner loading-xs"></span>
-                  OAuth Login
+                  Login
                 </button>
               </li>
               <li v-if="server.enabled && server.connected">
@@ -478,6 +478,11 @@ const needsOAuth = computed(() => {
          server.value.last_error?.includes('authorization')
 })
 
+// Suggested action from unified health status
+const healthAction = computed(() => {
+  return server.value?.health?.action || ''
+})
+
 const filteredTools = computed(() => {
   if (!toolSearch.value) return serverTools.value