fix(compare): date report cards with their own inspection date, never the legacy one

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_0146VHeLAWjDVE2B5uU67jCB

backend/data_loader.py

@@ -617,6 +617,11 @@ def _ofsted_block(o, urn: int) -> dict:
     block = {
         "framework": o.framework,
         "inspection_date": o.inspection_date.isoformat() if o.inspection_date else None,
+        "rc_inspection_date": (
+            o.rc_inspection_date.isoformat()
+            if getattr(o, "rc_inspection_date", None)
+            else None
+        ),
         "inspection_type": o.inspection_type,
         "overall_effectiveness": overall,
         "grade_source": grade_source,

backend/models.py

@@ -156,6 +156,9 @@ class FactOfstedInspection(Base):
     rc_leadership_governance = Column(Integer)
     rc_early_years = Column(Integer)
     rc_sixth_form = Column(Integer)
+    # Start date of the report-card inspection itself (renewed framework,
+    # Nov 2025+). Null for rows without report-card grades.
+    rc_inspection_date = Column(Date)
     report_url = Column(Text)
 
 

backend/tests/test_supplementary_enrichment.py

@@ -3,6 +3,7 @@ labels, provider-page URL, graded-vs-carried-forward provenance, and the
 admissions preference/cross-LA detail promoted in the data-foundation PR."""
 
 import types
+from datetime import date
 
 from backend.data_loader import _admissions_row_dict, _ofsted_block
 
@@ -40,6 +41,25 @@ def test_grade_source_graded_vs_carried_forward():
     assert _ofsted_block(_row(), urn=1)["grade_source"] is None
 
 
+def test_ofsted_block_carries_rc_inspection_date():
+    o = _row(
+        ungraded_grade=2,
+        rc_achievement=1,
+        rc_inspection_date=date(2026, 2, 3),
+        inspection_date=date(2021, 10, 7),
+    )
+    block = _ofsted_block(o, urn=138690)
+    assert block["rc_inspection_date"] == "2026-02-03"
+    # The legacy inspection date is still present, unchanged.
+    assert block["inspection_date"] == "2021-10-07"
+
+
+def test_ofsted_block_rc_inspection_date_none_when_absent():
+    o = _row(overall_effectiveness=1, inspection_date=date(2021, 10, 13))
+    block = _ofsted_block(o, urn=136276)
+    assert block["rc_inspection_date"] is None
+
+
 def test_ofsted_block_keeps_existing_keys():
     block = _ofsted_block(_row(overall_effectiveness=2, quality_of_education=2), urn=1)
     for key in ("framework", "inspection_date", "overall_effectiveness",