Added UI and functionality for profiles

get_profiles.php

@@ -0,0 +1,18 @@
+<?php
+require 'db.php';
+require 'auth.php';
+
+header('Content-Type: application/json');
+require_login();
+
+$user_id = current_user_id();
+
+$stmt = $pdo->prepare("SELECT id, name, is_default FROM profiles WHERE user_id = ? ORDER BY is_default DESC, name ASC");
+$stmt->execute([$user_id]);
+$profiles = $stmt->fetchAll(PDO::FETCH_ASSOC);
+
+echo json_encode([
+  'success' => true,
+  'active_profile_id' => $_SESSION['active_profile_id'] ?? null,
+  'profiles' => $profiles
+]);