Поправил схему, добавил инфу поля в навбар если пользователь админ

prisma/schema.prisma

@@ -55,8 +55,8 @@ model timetable {
 model users {
   id           Int            @id(map: "pk_users") @default(autoincrement())
   login        String         @unique @db.VarChar(25)
-  pass         String?        @db.VarChar(100)
-  is_admin     Boolean?       @default(false)
+  pass         String         @db.VarChar(100)
+  is_admin     Boolean        @default(false)
   timetable    timetable[]
   user_session user_session[]
 }

src/components/Navbar.astro

@@ -1,4 +1,10 @@
 ---
+export interface Props {
+    is_user_admin: boolean;
+}
+
+const { is_user_admin } = Astro.props;
+
 const items = [
     {
         href: "/",
@@ -8,6 +14,14 @@ const items = [
         href: "/timetable",
         title: "Расписание",
     },
+];
+if (is_user_admin) {
+    items.push({
+        href: "/users",
+        title: "Пользователи",
+    });
+}
+const itemsRight = [
     {
         href: "/logout",
         title: "Выйти",
@@ -28,5 +42,17 @@ const items = [
                 ))
             }
         </ul>
+        <div class="flex-grow-1"></div>
+        <ul class="navbar-nav me-auto mb-2 mb-lg-0 text-white">
+            {
+                itemsRight.map((e) => (
+                    <li class="nav-item">
+                        <a href={e.href} class="active nav-link text-white" aria-current="page">
+                            {e.title}
+                        </a>
+                    </li>
+                ))
+            }
+        </ul>
     </div>
 </nav>

src/pages/articleEditor.astro

@@ -20,7 +20,7 @@ if (articleId) {
 
 <Layout title="Создание новости">
     <main data-article={article?.message} data-articleId={articleId}>
-        <Navbar />
+        <Navbar is_user_admin={user.is_admin} />
         <div class="container mt-5" style="max-width: 650px;">
             <div class="d-flex">
                 <button type="button" class="btn btn-sm btn-success flex-fill" id="saveBtn">Сохранить</button>

src/pages/index.astro

@@ -17,17 +17,13 @@ if (Astro.cookies.has("session")) {
     return Astro.redirect("/login");
 }
 
-const { news, alerts } = await getNewsAndAlerts();
-
-const items: NavbarItemType[] = [
-    { text: "Новости", href: "/" },
-    { text: "Расписание", href: "/timetable" },
-];
+const sessId = Astro.cookies.get("session").value!;
+const user = (await getSessionUser(sessId))!;
 ---
 
 <Layout title="Новости">
     <main>
-        <Navbar />
+        <Navbar is_user_admin={user.is_admin} />
         <NewsBlock />
     </main>
 </Layout>