feat(places): submit place and outcode sitemaps

Separate children per family so Search Console reports the location layer's
indexation apart from the school pages' — which is the point of the index
built in W1, and the number the stop condition watches.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_015mWQnpye9F299NVRCCSRvj

backend/tests/test_sitemap.py

@@ -59,9 +59,14 @@ def static_child(monkeypatch) -> str:
 def test_every_loc_uses_the_www_host(sitemaps):
     # The apex 301s to www. A <loc> that redirects burns a crawl per URL.
     # Checked across every file, index included, not just one.
+    #
+    # A child can legitimately be empty — this fixture holds two schools and no
+    # town clearing the threshold — so the presence check applies only to files
+    # that carry URLs. The absence check applies to all of them.
     for name, xml in sitemaps.items():
-        assert "https://www.schoolcompare.co.uk" in xml, name
         assert "https://schoolcompare.co.uk" not in xml, name
+        if "<loc>" in xml:
+            assert "https://www.schoolcompare.co.uk" in xml, name
 
 
 def test_school_with_results_is_listed(schools_child):
@@ -217,3 +222,49 @@ def test_school_with_no_results_in_any_year_is_still_omitted(monkeypatch):
     monkeypatch.setattr(app_module, "load_school_data", lambda: df)
 
     assert "/school/100002" not in app_module.build_sitemaps()["schools-1.xml"]
+
+
+def _places_df() -> pd.DataFrame:
+    base = {
+        "local_authority": "Essex", "school_type": "Academy",
+        "phase": "Primary", "year": 202425, "ofsted_grade": 2.0,
+        "ofsted_date": None, "attainment_8_score": np.nan,
+        "town": "Brentwood", "postcode": "CM13 1AA",
+    }
+    return pd.DataFrame([
+        {**base, "urn": 100000 + i, "school_name": f"Brentwood School {i}",
+         "rwm_expected_pct": 60.0}
+        for i in range(6)
+    ])
+
+
+@pytest.fixture()
+def place_sitemaps(monkeypatch) -> dict:
+    from backend import app as app_module
+
+    monkeypatch.setattr(app_module, "load_school_data", _places_df)
+    monkeypatch.setattr(app_module, "_place_registry", None)
+    return app_module.build_sitemaps()
+
+
+def test_place_children_are_listed_in_the_index(place_sitemaps):
+    index = place_sitemaps["sitemap.xml"]
+    assert "/sitemaps/places-1.xml" in index
+    assert "/sitemaps/outcodes-1.xml" in index
+
+
+def test_town_and_authority_urls_use_their_own_namespaces(place_sitemaps):
+    xml = place_sitemaps["places-1.xml"]
+    assert "<loc>https://www.schoolcompare.co.uk/schools/brentwood</loc>" in xml
+    assert "<loc>https://www.schoolcompare.co.uk/schools/authority/essex</loc>" in xml
+
+
+def test_outcode_urls_live_in_their_own_child(place_sitemaps):
+    assert "/schools/near/cm13" in place_sitemaps["outcodes-1.xml"]
+    assert "/schools/near/cm13" not in place_sitemaps["places-1.xml"]
+
+
+def test_place_urls_carry_no_priority_or_changefreq(place_sitemaps):
+    for name in ("places-1.xml", "outcodes-1.xml"):
+        assert "<priority>" not in place_sitemaps[name]
+        assert "<changefreq>" not in place_sitemaps[name]