test: add data-testid attributes to admin page sections

frontend/app/admin/page.tsx

@@ -25,7 +25,7 @@ export default function AdminPage() {
 
   return (
     <PageShell>
-      <main className="p-3 md:p-8 max-w-7xl mx-auto space-y-6 md:space-y-10 mb-20">
+      <main data-testid="admin-page" className="p-3 md:p-8 max-w-7xl mx-auto space-y-6 md:space-y-10 mb-20">
         <header className="flex items-center gap-4 mb-8 md:mb-12">
           <div className="p-3 md:p-4 bg-indigo-500/10 rounded-2xl text-indigo-400 border border-indigo-500/20 shadow-xl shadow-indigo-500/5">
             <Shield size={28} className="md:w-8 md:h-8" />
@@ -47,7 +47,7 @@ export default function AdminPage() {
         <div className="grid lg:grid-cols-2 gap-6 md:gap-8 items-start">
           {/* Left Column: Identity & Integrity */}
           <section className="space-y-6 md:space-y-8">
-            <DatabaseManager 
+            <DatabaseManager data-testid="admin-tab-database"
               dbStats={admin.dbStats}
               isBackingUp={admin.isBackingUp}
               onCreateBackup={admin.handleCreateBackup}
@@ -59,7 +59,7 @@ export default function AdminPage() {
               onImport={admin.handleImportDb}
             />
 
-            <IdentityManager 
+            <IdentityManager data-testid="admin-tab-identity"
               users={admin.users}
               onAddUser={admin.handleAddUser}
               onDeleteUser={admin.handleDeleteUser}
@@ -73,7 +73,7 @@ export default function AdminPage() {
 
           {/* Right Column: Infrastructure */}
           <section className="space-y-6 md:space-y-8">
-            <LdapManager 
+            <LdapManager data-testid="admin-tab-ldap"
               ldapConfig={admin.ldapConfig}
               setLdapConfig={admin.setLdapConfig}
               testingLdap={admin.testingLdap}
@@ -84,7 +84,7 @@ export default function AdminPage() {
         </div>
 
         {/* Full Width: Category Groups */}
-        <CategoryManager 
+        <CategoryManager data-testid="admin-tab-categories"
           categories={admin.categories}
           onAddCategory={admin.handleAddCategory}
           onDeleteCategory={admin.handleDeleteCategory}
@@ -96,7 +96,7 @@ export default function AdminPage() {
         />
 
         {/* Full Width: AI Intelligence */}
-        <AiManager 
+        <AiManager data-testid="admin-tab-ai"
           aiConfig={admin.aiConfig}
           handleUpdateAiProvider={admin.handleUpdateAiProvider}
           aiKeys={admin.aiKeys}