fix(compare): expert sign-off must-fixes — phase-matched admissions, Ofsted sentinel codes, selective-school copy

M1: admissions rounds are now selected by the active phase tab
(admissionsForPhase) — an all-through school's Year 7 round no longer
masquerades as Reception odds beside pure primaries; honest per-cell and
section fallbacks name the round (Reception / Year 7).
M2: Ofsted sentinel codes (9 = not applicable) never render as judgement
chips, and the sixth-form judgement — previously dropped — now renders
for schools that have one.
M3: 'What this means' is phase- and type-aware: selective schools get
entrance-test framing, secondary faith schools a faith-criteria note, and
the primaries' distance template never appears on the secondary tab
(admissions_policy now exposed in compare school_info).

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

nextjs-app/lib/compareLogic.ts

@@ -143,6 +143,41 @@ export interface AdmissionsSummary {
   interest: string | null;
 }
 
+/**
+ * Pick the admissions round for the ACTIVE phase tab. An all-through school
+ * can carry only a Year 7 (Secondary) round — rendering that beside pure
+ * primaries' Reception rounds made 433-forms-for-173-places read as
+ * Reception odds. Rows matching the target phase win (latest year first);
+ * rows tagged with the OTHER phase are never substituted. Untagged rows
+ * (legacy data, no school_phase) are used only when no row carries a phase.
+ */
+export function admissionsForPhase(
+  data:
+    | { admissions?: SchoolAdmissions | null; admissions_history?: SchoolAdmissions[] }
+    | null
+    | undefined,
+  isSecondary: boolean,
+): SchoolAdmissions | null {
+  if (!data) return null;
+  const rows: SchoolAdmissions[] = [
+    ...(data.admissions_history ?? []),
+    ...(data.admissions ? [data.admissions] : []),
+  ];
+  if (rows.length === 0) return null;
+  const target = isSecondary ? 'secondary' : 'primary';
+  const byYearDesc = (a: SchoolAdmissions, b: SchoolAdmissions) => (b.year ?? 0) - (a.year ?? 0);
+
+  const matching = rows
+    .filter((r) => r.school_phase?.toLowerCase() === target)
+    .sort(byYearDesc);
+  if (matching.length > 0) return matching[0];
+
+  const tagged = rows.some((r) => r.school_phase != null);
+  if (!tagged) return [...rows].sort(byYearDesc)[0];
+
+  return null;
+}
+
 export function summariseAdmissions(
   a: SchoolAdmissions | null | undefined,
 ): AdmissionsSummary {