SEO: Fix structured data validation errors, delete static sitemap, and update indexing scripts

src/app/(main)/tools/page.tsx

@@ -0,0 +1,53 @@
+import React from 'react';
+import type { Metadata } from 'next';
+import { FreeToolsGrid } from '@/components/marketing/FreeToolsGrid';
+
+export const metadata: Metadata = {
+    title: 'Free QR Code Tools | URL, vCard, WiFi & More | QR Master',
+    description: 'Access our complete collection of free QR code generators. Create codes for URLs, WiFi, plain text, vCards, and more. No signup required for static codes.',
+    alternates: {
+        canonical: 'https://www.qrmaster.net/tools',
+    },
+    openGraph: {
+        title: 'Free QR Code Tools Collection',
+        description: 'All your QR code needs in one place. Free forever static codes.',
+        url: 'https://www.qrmaster.net/tools',
+        siteName: 'QR Master',
+        type: 'website',
+    },
+};
+
+export default function ToolsHubPage() {
+    return (
+        <div className="min-h-screen bg-slate-50 pt-20">
+            <section className="bg-white py-20 px-4 border-b border-slate-200">
+                <div className="container mx-auto text-center max-w-4xl">
+                    <span className="inline-block px-4 py-1.5 rounded-full bg-indigo-50 text-indigo-700 font-semibold text-sm mb-6">
+                        100% Free Forever
+                    </span>
+                    <h1 className="text-4xl md:text-6xl font-extrabold text-slate-900 mb-6 tracking-tight">
+                        Free QR Code Tools
+                    </h1>
+                    <p className="text-xl text-slate-600 mb-8 leading-relaxed max-w-2xl mx-auto">
+                        Generate static QR codes for any purpose. No credit card, no expiration, no hidden fees.
+                    </p>
+                </div>
+            </section>
+
+            <div className="py-12">
+                <FreeToolsGrid />
+            </div>
+
+            <section className="py-20 px-4">
+                <div className="container mx-auto max-w-3xl text-center">
+                    <h2 className="text-2xl font-bold text-slate-900 mb-4">Why are these tools free?</h2>
+                    <p className="text-slate-600 mb-8">
+                        We believe basic QR codes should be accessible to everyone. Our static QR codes encode your data directly into the image,
+                        meaning we don't need to host tracking servers for them. That's why they are free forever.
+                        If you need tracking and editability, check out our Dynamic QR Codes.
+                    </p>
+                </div>
+            </section>
+        </div>
+    );
+}