fix: S06.6 guard window.isSecureContext in Login.svelte (SSR-safe) / S06.7 remove legacy localStorage refresh token

dashboard/frontend/src/lib/api.js

@@ -23,13 +23,7 @@ export function setRefreshToken() {}
 
 let refreshPromise = null;
 
-function getLegacyRefreshToken() {
-  return localStorage.getItem("refresh_token") || "";
-}
 
-function clearLegacyRefreshToken() {
-  localStorage.removeItem("refresh_token");
-}
 
 async function requestRefresh(body) {
   const r = await fetch(BASE + "/auth/refresh", {
@@ -50,18 +44,9 @@ export async function tryRefreshSession() {
     try {
       const cookieRefreshed = await requestRefresh();
       if (cookieRefreshed) {
-        clearLegacyRefreshToken();
         return true;
       }
 
-      const legacyRefreshToken = getLegacyRefreshToken();
-      if (!legacyRefreshToken) return false;
-      const legacyRefreshed = await requestRefresh({ refresh_token: legacyRefreshToken });
-      if (legacyRefreshed) {
-        clearLegacyRefreshToken();
-        return true;
-      }
-      clearLegacyRefreshToken();
       return false;
     } catch {
       return false;

dashboard/frontend/src/routes/Login.svelte

@@ -8,7 +8,14 @@
   let error = $state("");
   let loading = $state(false);
   let require2FA = $state(false);
-  let showPasswordForm = $state(!window.isSecureContext);
+  let showPasswordForm = $state(true);
+  let _isBrowser = $state(typeof window !== "undefined");
+  $effect(() => {
+    if (_isBrowser) {
+      showPasswordForm = !window.isSecureContext;
+    }
+  });
+  
 
   function base64urlToBuffer(b64) {
     const s = b64.replace(/-/g, '+').replace(/_/g, '/');