feat(data): integrate 9 UK government data sources via Kestra

Adds a full data integration pipeline for enriching school profiles with
supplementary data from Ofsted, GIAS, EES, IDACI, and FBIT.

Backend:
- Bump SCHEMA_VERSION to 3; add 8 new DB tables (ofsted_inspections,
  ofsted_parent_view, school_census, admissions, sen_detail, phonics,
  school_deprivation, school_finance) plus GIAS columns on schools
- Expose all supplementary data via GET /api/schools/{urn}
- Enrich school list responses with ofsted_grade + ofsted_date

Integrator (new service):
- FastAPI HTTP microservice; Kestra calls POST /run/{source}
- 9 source modules: ofsted, gias, parent_view, census, admissions,
  sen_detail, phonics, idaci, finance
- 9 Kestra flow YAMLs with scheduled triggers and 3× retry

Frontend:
- SchoolRow: colour-coded Ofsted badge (Outstanding/Good/RI/Inadequate)
- SchoolDetailView: 7 new sections — Ofsted sub-judgements, Parent View
  survey bars, Admissions, Pupils & Inclusion / SEN, Phonics, Deprivation
  Context, Finances
- types.ts: 8 new interfaces + extended School/SchoolDetailsResponse

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

nextjs-app/components/SchoolDetailView.module.css

@@ -424,3 +424,120 @@
   color: var(--text-muted);
   font-style: italic;
 }
+
+/* ── Supplementary Data Sections ──────────────────────── */
+.supplementarySection {
+  background: var(--bg-card, white);
+  border: 1px solid var(--border-color, #e5dfd5);
+  border-radius: 10px;
+  padding: 1.25rem 1.5rem;
+}
+
+.supplementarySubtitle {
+  font-size: 0.85rem;
+  color: var(--text-muted, #8a847a);
+  margin-bottom: 1rem;
+}
+
+.subSectionTitle {
+  font-size: 0.875rem;
+  font-weight: 600;
+  color: var(--text-secondary, #5c564d);
+  margin: 1.25rem 0 0.75rem;
+}
+
+/* Ofsted */
+.ofstedHeader {
+  display: flex;
+  align-items: center;
+  gap: 0.75rem;
+  margin-bottom: 1rem;
+}
+
+.ofstedGrade {
+  display: inline-block;
+  padding: 0.3rem 0.75rem;
+  font-size: 1rem;
+  font-weight: 700;
+  border-radius: 6px;
+  white-space: nowrap;
+}
+
+.ofstedGrade1 { background: rgba(45, 125, 125, 0.12); color: var(--accent-teal, #2d7d7d); }
+.ofstedGrade2 { background: rgba(60, 140, 60, 0.12);  color: #3c8c3c; }
+.ofstedGrade3 { background: rgba(201, 162, 39, 0.15); color: #b8920e; }
+.ofstedGrade4 { background: rgba(224, 114, 86, 0.15); color: var(--accent-coral, #e07256); }
+
+.ofstedDate {
+  font-size: 0.85rem;
+  color: var(--text-muted, #8a847a);
+}
+
+.ofstedType {
+  font-size: 0.8rem;
+  color: var(--text-muted, #8a847a);
+  margin-top: 0.5rem;
+  font-style: italic;
+}
+
+/* Parent View */
+.parentViewGrid {
+  display: flex;
+  flex-direction: column;
+  gap: 0.5rem;
+}
+
+.parentViewRow {
+  display: flex;
+  align-items: center;
+  gap: 0.75rem;
+  font-size: 0.875rem;
+}
+
+.parentViewLabel {
+  flex: 0 0 18rem;
+  color: var(--text-secondary, #5c564d);
+  font-size: 0.8125rem;
+}
+
+.parentViewBar {
+  flex: 1;
+  height: 0.5rem;
+  background: var(--bg-secondary, #f3ede4);
+  border-radius: 4px;
+  overflow: hidden;
+}
+
+.parentViewFill {
+  height: 100%;
+  background: var(--accent-teal, #2d7d7d);
+  border-radius: 4px;
+  transition: width 0.4s ease;
+}
+
+.parentViewPct {
+  flex: 0 0 2.75rem;
+  text-align: right;
+  font-size: 0.8125rem;
+  font-weight: 600;
+  color: var(--text-primary, #1a1612);
+}
+
+/* Metric hint (small label below metricValue) */
+.metricHint {
+  font-size: 0.75rem;
+  color: var(--text-muted, #8a847a);
+  margin-top: 0.25rem;
+  font-style: italic;
+}
+
+/* ── Mobile ──────────────────────────────────────────── */
+@media (max-width: 640px) {
+  .supplementarySection {
+    padding: 1rem;
+  }
+
+  .parentViewLabel {
+    flex: 0 0 10rem;
+  }
+}