Add navigation and smooth scrolling for alert toasts

This update enables opening specific alerts via toast buttons, utilizing `useNavigate` to redirect and auto-expand the corresponding alert on the Alerts page. Includes enhancements for toast dismissal with animations and adds new styles for smooth transitions and better user interaction.

frontend/src/App.jsx

@@ -1,5 +1,5 @@
 import React from "react";
-import { NavLink, Navigate, Route, Routes, useLocation } from "react-router-dom";
+import { NavLink, Navigate, Route, Routes, useLocation, useNavigate } from "react-router-dom";
 import { useAuth } from "./state";
 import { LoginPage } from "./pages/LoginPage";
 import { DashboardPage } from "./pages/DashboardPage";
@@ -18,6 +18,7 @@ function Protected({ children }) {
 
 function Layout({ children }) {
   const { me, logout, uiMode, setUiMode, alertToasts, dismissAlertToast } = useAuth();
+  const navigate = useNavigate();
   const navClass = ({ isActive }) => `nav-btn${isActive ? " active" : ""}`;
 
   return (
@@ -93,13 +94,33 @@ function Layout({ children }) {
         {children}
         <div className="toast-stack" aria-live="polite" aria-atomic="true">
           {alertToasts.map((toast) => (
-            <div key={toast.id} className={`alert-toast ${toast.severity || "warning"}`}>
+            <div key={toast.id} className={`alert-toast ${toast.severity || "warning"}${toast.closing ? " closing" : ""}`}>
               <div className="alert-toast-head">
                 <strong>{toast.severity === "alert" ? "New Alert" : "New Warning"}</strong>
+                <div className="toast-actions">
+                  <button
+                    type="button"
+                    className="toast-view"
+                    title="Open in Alerts"
+                    onClick={() => {
+                      navigate(`/alerts?open=${encodeURIComponent(toast.alertKey || "")}`);
+                      dismissAlertToast(toast.id);
+                    }}
+                  >
+                    <span aria-hidden="true">
+                      <svg viewBox="0 0 24 24" width="13" height="13">
+                        <path
+                          d="M2 12s3.5-6 10-6 10 6 10 6-3.5 6-10 6-10-6-10-6zm10 3a3 3 0 1 0 0-6 3 3 0 0 0 0 6z"
+                          fill="currentColor"
+                        />
+                      </svg>
+                    </span>
+                  </button>
                   <button type="button" className="toast-close" onClick={() => dismissAlertToast(toast.id)}>
                     x
                   </button>
                 </div>
+              </div>
               <div className="alert-toast-title">{toast.title}</div>
               <div className="alert-toast-target">{toast.target}</div>
               <div className="alert-toast-message">{toast.message}</div>

frontend/src/pages/AlertsPage.jsx

@@ -1,4 +1,5 @@
 import React, { useEffect, useMemo, useState } from "react";
+import { useLocation } from "react-router-dom";
 import { apiFetch } from "../api";
 import { useAuth } from "../state";
 
@@ -75,6 +76,7 @@ function buildAlertSuggestions(item) {
 }
 
 export function AlertsPage() {
+  const location = useLocation();
   const { tokens, refresh, me, alertStatus } = useAuth();
   const [targets, setTargets] = useState([]);
   const [definitions, setDefinitions] = useState([]);
@@ -206,6 +208,18 @@ export function AlertsPage() {
     setExpandedKey((prev) => (prev === key ? "" : key));
   };
 
+  useEffect(() => {
+    const params = new URLSearchParams(location.search);
+    const openKey = params.get("open");
+    if (!openKey) return;
+    setExpandedKey(openKey);
+    const id = `alert-item-${openKey.replace(/[^a-zA-Z0-9_-]/g, "-")}`;
+    setTimeout(() => {
+      const el = document.getElementById(id);
+      if (el) el.scrollIntoView({ behavior: "smooth", block: "center" });
+    }, 120);
+  }, [location.search]);
+
   if (loading) return <div className="card">Loading alerts...</div>;
 
   return (
@@ -237,6 +251,7 @@ export function AlertsPage() {
                   <article
                     className={`alert-item warning ${isOpen ? "is-open" : ""}`}
                     key={item.alert_key}
+                    id={`alert-item-${item.alert_key.replace(/[^a-zA-Z0-9_-]/g, "-")}`}
                     onClick={() => toggleExpanded(item.alert_key)}
                     role="button"
                     tabIndex={0}
@@ -287,6 +302,7 @@ export function AlertsPage() {
                   <article
                     className={`alert-item alert ${isOpen ? "is-open" : ""}`}
                     key={item.alert_key}
+                    id={`alert-item-${item.alert_key.replace(/[^a-zA-Z0-9_-]/g, "-")}`}
                     onClick={() => toggleExpanded(item.alert_key)}
                     role="button"
                     tabIndex={0}

frontend/src/state.jsx

@@ -95,7 +95,10 @@ export function AuthProvider({ children }) {
   };
 
   const dismissAlertToast = (toastId) => {
+    setAlertToasts((prev) => prev.map((t) => (t.id === toastId ? { ...t, closing: true } : t)));
+    setTimeout(() => {
       setAlertToasts((prev) => prev.filter((t) => t.id !== toastId));
+    }, 220);
   };
 
   useEffect(() => {
@@ -114,10 +117,12 @@ export function AuthProvider({ children }) {
       const createdAt = Date.now();
       const nextToasts = items.slice(0, 4).map((item, idx) => ({
         id: `${createdAt}-${idx}-${item.alert_key}`,
+        alertKey: item.alert_key,
         severity: item.severity,
         title: item.name,
         target: item.target_name,
         message: item.message,
+        closing: false,
       }));
       setAlertToasts((prev) => [...nextToasts, ...prev].slice(0, 6));
       for (const toast of nextToasts) {

frontend/src/styles.css

@@ -1000,6 +1000,10 @@ td {
   animation: toastIn 0.22s ease;
 }
 
+.alert-toast.closing {
+  animation: toastOut 0.22s ease forwards;
+}
+
 .alert-toast.warning {
   border-color: #db9125;
   background: linear-gradient(180deg, #4a2d0f, #35210d);
@@ -1023,6 +1027,24 @@ td {
   letter-spacing: 0.02em;
 }
 
+.toast-actions {
+  display: flex;
+  align-items: center;
+  gap: 6px;
+}
+
+.toast-view {
+  border: 1px solid #5d80b1;
+  background: #0f274b;
+  border-radius: 8px;
+  font-size: 11px;
+  line-height: 1;
+  padding: 4px 7px;
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+}
+
 .toast-close {
   border: 1px solid #5d80b1;
   background: #0f274b;
@@ -1181,6 +1203,17 @@ select:-webkit-autofill {
   }
 }
 
+@keyframes toastOut {
+  from {
+    opacity: 1;
+    transform: translateY(0);
+  }
+  to {
+    opacity: 0;
+    transform: translateY(8px);
+  }
+}
+
 .query {
   max-width: 400px;
   white-space: nowrap;