Improve SEO and agentic browsing for public pages (#18).

Add per-page titles/meta/Open Graph, semantic landmarks, robots/sitemap/llms.txt, and accessibility fixes so humans and agents can discover and navigate the site reliably.

schasite/tests.py

@@ -89,6 +89,49 @@ class PublicPageTests(TestCase):
         self.assertEqual(response.status_code, 200)
         self.assertContains(response, "City of Wheaton")
 
+    def test_public_pages_include_seo_metadata(self):
+        pages = [
+            ("index2", "Home | Stonehedge"),
+            ("about_us2", "About Us | Stonehedge"),
+            ("calendar2", "Calendar | Stonehedge"),
+            ("dues2", "Pay Dues | Stonehedge"),
+            ("membership_form2", "Join Today | Stonehedge"),
+            ("scha_board2", "SCHA Board | Stonehedge"),
+            ("useful_links2", "Useful Links | Stonehedge"),
+        ]
+
+        for name, title_fragment in pages:
+            with self.subTest(page=name):
+                response = self.client.get(reverse(name))
+                self.assertEqual(response.status_code, 200)
+                self.assertContains(response, f"<title>{title_fragment}")
+                self.assertContains(response, 'name="description"')
+                self.assertContains(response, 'property="og:title"')
+                self.assertContains(response, 'rel="canonical"')
+                self.assertContains(response, 'id="main-content"')
+                self.assertContains(response, "Skip to main content")
+
+    def test_robots_txt(self):
+        response = self.client.get(reverse("robots_txt"))
+        self.assertEqual(response.status_code, 200)
+        self.assertEqual(response["Content-Type"].split(";")[0], "text/plain")
+        self.assertContains(response, "Sitemap:")
+        self.assertContains(response, "Disallow: /admin/")
+
+    def test_sitemap_xml(self):
+        response = self.client.get(reverse("sitemap_xml"))
+        self.assertEqual(response.status_code, 200)
+        self.assertIn("xml", response["Content-Type"])
+        self.assertContains(response, reverse("index2"))
+        self.assertContains(response, reverse("dues2"))
+
+    def test_llms_txt(self):
+        response = self.client.get(reverse("llms_txt"))
+        self.assertEqual(response.status_code, 200)
+        self.assertEqual(response["Content-Type"].split(";")[0], "text/plain")
+        self.assertContains(response, "Stonehedge Community Homeowners Association")
+        self.assertContains(response, reverse("membership_form2").lstrip("/"))
+
 
 @override_settings(
     RECAPTCHA_PUBLIC_KEY="test-public-key",