First crack at the app. Still lots of bugs to squash.

src/lib/stores/auth.svelte.ts

@@ -0,0 +1,43 @@
+import {getRoleFromToken, getSubjectFromToken, type UserRole} from '../utils/jwt'
+
+let _accessToken = $state<string | null>(localStorage.getItem('accessToken'))
+let _refreshToken = $state<string | null>(localStorage.getItem('refreshToken'))
+let _name = $state<string | null>(localStorage.getItem('hunterName'))
+
+export const auth = {
+  get accessToken() { return _accessToken },
+  get refreshToken() { return _refreshToken },
+  get isLoggedIn() { return _accessToken !== null },
+  get role(): UserRole | null { return _accessToken ? getRoleFromToken(_accessToken) : null },
+  get isAdmin() { return auth.role === 'ADMIN' },
+  get subject() { return _accessToken ? getSubjectFromToken(_accessToken) : null },
+  get name() { return _name },
+}
+
+export function setTokens(accessToken: string, refreshToken: string, name?: string) {
+  _accessToken = accessToken
+  _refreshToken = refreshToken
+  localStorage.setItem('accessToken', accessToken)
+  localStorage.setItem('refreshToken', refreshToken)
+  if (name !== undefined) {
+    _name = name
+    localStorage.setItem('hunterName', name)
+  }
+}
+
+export function setAccessToken(token: string) {
+  _accessToken = token
+  localStorage.setItem('accessToken', token)
+}
+
+export function getAccessToken() { return _accessToken }
+export function getRefreshToken() { return _refreshToken }
+
+export function clearTokens() {
+  _accessToken = null
+  _refreshToken = null
+  _name = null
+  localStorage.removeItem('accessToken')
+  localStorage.removeItem('refreshToken')
+  localStorage.removeItem('hunterName')
+}