feat: complete SEO optimization with robots.txt and sitemap

ui/index.html

@@ -7,8 +7,12 @@
     <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
     <link href="https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800;900&family=JetBrains+Mono:ital,wght@0,400;0,500;1,400&display=swap" rel="stylesheet">
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-    <title>Redac | AI-Powered PII Data Redaction & Sanitization</title>
-    <meta name="description" content="Securely redact PII (Personally Identifiable Information) from your documents using AI. Protect sensitive data before sending it to LLMs like GPT or Claude. Supports English and French." />
+    <link rel="canonical" href="https://lbl-redaction.hf.space" />
+    <title>Redac - AI PII Redaction Tool | Sanitize Data for LLMs</title>
+    <meta name="description" content="Free, secure AI tool to redact PII (names, emails, phones, IBAN, SIRET) from documents. Protect your privacy before using ChatGPT, Claude, or Gemini. Supports French and English." />
+    <meta name="keywords" content="PII redaction, data sanitization, privacy tool, anonymize text, French PII, GDPR compliance, LLM security" />
+    <meta name="author" content="lbl" />
+    <meta name="robots" content="index, follow" />
     
     <!-- Open Graph / Facebook -->
     <meta property="og:type" content="website" />

ui/public/robots.txt

@@ -0,0 +1,3 @@
+User-agent: *
+Allow: /
+Sitemap: https://lbl-redaction.hf.space/sitemap.xml

ui/public/sitemap.xml

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
+  <url>
+    <loc>https://lbl-redaction.hf.space/</loc>
+    <lastmod>2026-03-22</lastmod>
+    <changefreq>monthly</changefreq>
+    <priority>1.0</priority>
+  </url>
+</urlset>