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/app/school/[urn]/page.tsx

@@ -77,7 +77,7 @@ export default async function SchoolPage({ params }: SchoolPageProps) {
     notFound();
   }
 
-  const { school_info, yearly_data, absence_data } = data;
+  const { school_info, yearly_data, absence_data, ofsted, parent_view, census, admissions, sen_detail, phonics, deprivation, finance } = data;
 
   // Generate JSON-LD structured data for SEO
   const structuredData = {
@@ -116,6 +116,14 @@ export default async function SchoolPage({ params }: SchoolPageProps) {
         schoolInfo={school_info}
         yearlyData={yearly_data}
         absenceData={absence_data}
+        ofsted={ofsted ?? null}
+        parentView={parent_view ?? null}
+        census={census ?? null}
+        admissions={admissions ?? null}
+        senDetail={sen_detail ?? null}
+        phonics={phonics ?? null}
+        deprivation={deprivation ?? null}
+        finance={finance ?? null}
       />
     </>
   );