feat: enhance setup process with SMTP configuration and token generation

fix: require authentication for certain routes and improve exam data handling
chore: update .gitignore to include additional database files

frontend/src/components/Landing.tsx

@@ -6,7 +6,7 @@ import { loadState } from '../utils/storage'
 import { formatDate, formatTime } from '../utils/formatting'
 
 interface Props {
-  onLoadExam: (exam: Exam) => void
+  onLoadExam: (exam: Exam, saveToWorkspace?: boolean) => void
   history: HistoryEntry[]
   onResume: () => void
   onClearHistory: () => void
@@ -32,7 +32,7 @@ export default function Landing({ onLoadExam, history, onResume, onClearHistory,
       const data = JSON.parse(text) as unknown
       const msg = validateExam(data)
       if (msg) throw new Error(msg)
-      onLoadExam(parseExam(data))
+      onLoadExam(parseExam(data), true)
     } catch (e) {
       setErr(t('landing.loadError', { message: (e as Error).message }))
     }

frontend/src/components/SetupWizard.tsx

@@ -274,7 +274,6 @@ export default function SetupWizard({ onComplete }: Readonly<Props>) {
                 value={appUrl}
                 onChange={(e) => setAppUrl(e.target.value)}
                 placeholder="https://brainwave.example.com"
-                required
               />
             </div>