Fixed functionality issue for profiles

add_profile.php

@@ -0,0 +1,41 @@
+<?php
+require 'db.php';
+require 'auth.php';
+
+header('Content-Type: application/json');
+require_login();
+
+$user_id = current_user_id();
+
+$data = json_decode(file_get_contents('php://input'), true);
+$name = trim($data['name'] ?? '');
+
+if ($name === '') {
+    http_response_code(400);
+    echo json_encode(['success' => false, 'error' => 'Profile name is required']);
+    exit;
+}
+
+// Prevent duplicate profile names per user
+$stmt = $pdo->prepare("SELECT id FROM profiles WHERE user_id = ? AND name = ?");
+$stmt->execute([$user_id, $name]);
+
+if ($stmt->fetchColumn()) {
+    http_response_code(409);
+    echo json_encode(['success' => false, 'error' => 'Profile already exists']);
+    exit;
+}
+
+// Insert new profile
+$stmt = $pdo->prepare("INSERT INTO profiles (user_id, name, is_default) VALUES (?, ?, 0)");
+$stmt->execute([$user_id, $name]);
+
+$newProfileId = $pdo->lastInsertId();
+
+// Make it active immediately
+$_SESSION['active_profile_id'] = (int)$newProfileId;
+
+echo json_encode([
+    'success' => true,
+    'profile_id' => $newProfileId
+]);