release(v2.0.0): feat(pro): client portals + portal login flow

public/api/pro/portals/list.php

@@ -0,0 +1,32 @@
+<?php
+// public/api/pro/portals/list.php
+declare(strict_types=1);
+
+header('Content-Type: application/json; charset=utf-8');
+
+require_once __DIR__ . '/../../../../config/config.php';
+require_once PROJECT_ROOT . '/src/controllers/AdminController.php';
+
+try {
+    if (session_status() !== PHP_SESSION_ACTIVE) {
+        session_start();
+    }
+
+    AdminController::requireAuth();
+    AdminController::requireAdmin();
+
+    $ctrl    = new AdminController();
+    $portals = $ctrl->getProPortals();
+
+    echo json_encode([
+        'success' => true,
+        'portals' => $portals,
+    ], JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES);
+} catch (Throwable $e) {
+    $code = $e instanceof InvalidArgumentException ? 400 : 500;
+    http_response_code($code);
+    echo json_encode([
+        'success' => false,
+        'error'   => $e->getMessage(),
+    ], JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES);
+}