fix: 배포 후 관리자 세션 복구 처리

TaxBaik.Web/wwwroot/css/admin.css

@@ -169,6 +169,41 @@ button:disabled {
     opacity: 0.6;
 }
 
+.admin-reconnect-modal {
+    display: none;
+}
+
+.admin-reconnect-modal.components-reconnect-show,
+.admin-reconnect-modal.components-reconnect-failed,
+.admin-reconnect-modal.components-reconnect-rejected {
+    position: fixed;
+    inset: 0;
+    z-index: 10000;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    padding: 24px;
+    background: rgba(15, 23, 42, 0.48);
+}
+
+.admin-reconnect-card {
+    width: min(420px, 100%);
+    padding: 24px;
+    border-radius: 16px;
+    background: #fff;
+    box-shadow: 0 24px 80px rgba(15, 23, 42, 0.28);
+}
+
+.admin-reconnect-card strong,
+.admin-reconnect-card span {
+    display: block;
+}
+
+.admin-reconnect-card span {
+    margin-top: 8px;
+    color: #64748b;
+}
+
 /* Responsive */
 @media (max-width: 600px) {
     .mud-container-maxwidth-small {

TaxBaik.Web/wwwroot/js/admin-session.js

@@ -0,0 +1,26 @@
+window.taxbaikAdminSession = {
+    clearAuthToken: function () {
+        try {
+            localStorage.removeItem('auth_token');
+        } catch {
+            // Ignore storage errors; redirect still recovers the session.
+        }
+    },
+    watchReconnect: function () {
+        const modal = document.getElementById('components-reconnect-modal');
+        if (!modal) {
+            return;
+        }
+
+        const reloadOnRejectedCircuit = () => {
+            const className = modal.className || '';
+            if (className.includes('components-reconnect-failed') ||
+                className.includes('components-reconnect-rejected')) {
+                window.setTimeout(() => window.location.reload(), 1500);
+            }
+        };
+
+        new MutationObserver(reloadOnRejectedCircuit)
+            .observe(modal, { attributes: true, attributeFilter: ['class'] });
+    }
+};