Add WebMCP tool registration for agentic browsing (#9) (#12)

## Summary

- Add `WEBMCP_ENABLED` setting and guarded `webmcp-tools.js` loader on public pages
- Register navigation tools (`list_services`, `get_page_content`, `navigate_to_service`, `open_contact_with_subject`) and contact tool (`submit_contact_inquiry`)
- Annotate contact form with declarative WebMCP attributes for Lighthouse form coverage
- Extend `PUBLIC_PAGE_ENTRIES` with summaries shared by SEO and WebMCP tools
- Add `docs/webmcp.md`, update `docs/agentic-browsing.md`, and regression tests

Closes #9

## Test plan

- [x] `python manage.py test public.tests` — 20 tests pass
- [ ] Set `WEBMCP_ENABLED=True`, enable Chrome experimental web platform features flag
- [ ] Verify homepage HTML includes `webmcp-config` and `webmcp-tools.js`
- [ ] Verify `/contact` form has `toolname="submit_contact_inquiry"`
- [ ] Run Lighthouse agentic-browsing on `/` and `/contact` with experimental flag
- [ ] Call `list_services` from WebMCP-capable Chrome on homepage
- [ ] Call `submit_contact_inquiry` on `/contact` with `DEBUG=True` (reCAPTCHA bypass)

Reviewed-on: #12

company_site/public/seo.py

@@ -5,21 +5,119 @@ from django.template.loader import render_to_string
 from django.urls import reverse
 
 # Public marketing pages included in sitemap and llms.txt.
+# Tuple: (url_name, title, changefreq, priority, summary)
 PUBLIC_PAGE_ENTRIES = (
-    ("public_index", "Home", "weekly", "1.0"),
-    ("forward_deployed", "Forward-Deployed AI", "monthly", "0.9"),
-    ("bot", "AI Agents", "monthly", "0.9"),
-    ("ml_model", "ML Models", "monthly", "0.8"),
-    ("chat", "Secure AI Chat", "monthly", "0.8"),
-    ("ai_sensor", "AI Sensor Algorithms", "monthly", "0.7"),
-    ("ai_education", "AI Education", "monthly", "0.7"),
-    ("computers", "Computer Builds", "monthly", "0.7"),
-    ("file_hosting", "File Hosting", "monthly", "0.7"),
-    ("web_design", "Web Design and Hosting", "monthly", "0.8"),
-    ("contact", "Contact", "monthly", "0.9"),
-    ("terms_of_service", "Terms of Service and Privacy", "yearly", "0.3"),
+    (
+        "public_index",
+        "Home",
+        "weekly",
+        "1.0",
+        "Company homepage with an overview of AI ML Operations services.",
+    ),
+    (
+        "forward_deployed",
+        "Forward-Deployed AI",
+        "monthly",
+        "0.9",
+        "Embedded AI engineering — we work inside your environment to build production systems.",
+    ),
+    (
+        "bot",
+        "AI Agents",
+        "monthly",
+        "0.9",
+        "Custom AI agents and agentic workflows tailored to your operational bottlenecks.",
+    ),
+    (
+        "ml_model",
+        "ML Models",
+        "monthly",
+        "0.8",
+        "Machine learning model development, training, and deployment for production use.",
+    ),
+    (
+        "chat",
+        "Secure AI Chat",
+        "monthly",
+        "0.8",
+        "Private, hosted AI chat deployments with enterprise-grade security.",
+    ),
+    (
+        "ai_sensor",
+        "AI Sensor Algorithms",
+        "monthly",
+        "0.7",
+        "Computer vision and sensor-fusion algorithms for real-world sensing applications.",
+    ),
+    (
+        "ai_education",
+        "AI Education",
+        "monthly",
+        "0.7",
+        "Hands-on AI training and workshops for teams adopting agentic workflows.",
+    ),
+    (
+        "computers",
+        "Computer Builds",
+        "monthly",
+        "0.7",
+        "Custom workstation and server builds optimized for AI and ML workloads.",
+    ),
+    (
+        "file_hosting",
+        "File Hosting",
+        "monthly",
+        "0.7",
+        "Managed file hosting and storage for teams that need reliable data access.",
+    ),
+    (
+        "web_design",
+        "Web Design and Hosting",
+        "monthly",
+        "0.8",
+        "Web design, development, and managed hosting for business sites and apps.",
+    ),
+    (
+        "contact",
+        "Contact",
+        "monthly",
+        "0.9",
+        "Contact form to inquire about forward-deployed AI engineering services.",
+    ),
+    (
+        "terms_of_service",
+        "Terms of Service and Privacy",
+        "yearly",
+        "0.3",
+        "Terms of service and privacy policy for AI ML Operations, LLC.",
+    ),
 )
 
+SERVICE_URL_NAMES = frozenset({
+    "forward_deployed",
+    "bot",
+    "ml_model",
+    "chat",
+    "ai_sensor",
+    "ai_education",
+    "computers",
+    "file_hosting",
+    "web_design",
+})
+
+
+def get_service_entries():
+    """Return service page metadata for WebMCP navigation tools."""
+    return [
+        {
+            "slug": url_name,
+            "name": title,
+            "summary": summary,
+        }
+        for url_name, title, _changefreq, _priority, summary in PUBLIC_PAGE_ENTRIES
+        if url_name in SERVICE_URL_NAMES
+    ]
+
 
 def _absolute_url(request, url_name):
     return request.build_absolute_uri(reverse(url_name))
@@ -41,7 +139,7 @@ def sitemap_xml(request):
             "changefreq": changefreq,
             "priority": priority,
         }
-        for url_name, _title, changefreq, priority in PUBLIC_PAGE_ENTRIES
+        for url_name, _title, changefreq, priority, _summary in PUBLIC_PAGE_ENTRIES
     ]
     content = render_to_string("public/sitemap.xml", {"pages": pages})
     return HttpResponse(content, content_type="application/xml; charset=utf-8")
@@ -53,7 +151,7 @@ def llms_txt(request):
             "title": title,
             "url": _absolute_url(request, url_name),
         }
-        for url_name, title, _changefreq, _priority in PUBLIC_PAGE_ENTRIES
+        for url_name, title, _changefreq, _priority, _summary in PUBLIC_PAGE_ENTRIES
     ]
     content = render_to_string(
         "public/llms.txt",