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/lib/types.ts

@@ -47,6 +47,102 @@ export interface School {
 
   // Location search fields
   distance?: number | null;
+
+  // GIAS enrichment fields
+  website?: string | null;
+  headteacher_name?: string | null;
+  capacity?: number | null;
+  trust_name?: string | null;
+  gender?: string | null;
+
+  // Ofsted (for list view — summary only)
+  ofsted_grade?: 1 | 2 | 3 | 4 | null;
+  ofsted_date?: string | null;
+}
+
+// ============================================================================
+// Supplementary Data Types (populated by Kestra data integrator)
+// ============================================================================
+
+export interface OfstedInspection {
+  overall_effectiveness: 1 | 2 | 3 | 4 | null;
+  quality_of_education: number | null;
+  behaviour_attitudes: number | null;
+  personal_development: number | null;
+  leadership_management: number | null;
+  early_years_provision: number | null;
+  previous_overall: number | null;
+  inspection_date: string | null;
+  inspection_type: string | null;
+}
+
+export interface OfstedParentView {
+  survey_date: string | null;
+  total_responses: number | null;
+  q_happy_pct: number | null;
+  q_safe_pct: number | null;
+  q_behaviour_pct: number | null;
+  q_bullying_pct: number | null;
+  q_communication_pct: number | null;
+  q_progress_pct: number | null;
+  q_teaching_pct: number | null;
+  q_information_pct: number | null;
+  q_curriculum_pct: number | null;
+  q_future_pct: number | null;
+  q_leadership_pct: number | null;
+  q_wellbeing_pct: number | null;
+  q_recommend_pct: number | null;
+  q_sen_pct: number | null;
+}
+
+export interface SchoolCensus {
+  year: number;
+  class_size_avg: number | null;
+  ethnicity_white_pct: number | null;
+  ethnicity_asian_pct: number | null;
+  ethnicity_black_pct: number | null;
+  ethnicity_mixed_pct: number | null;
+  ethnicity_other_pct: number | null;
+}
+
+export interface SchoolAdmissions {
+  year: number;
+  published_admission_number: number | null;
+  total_applications: number | null;
+  first_preference_offers_pct: number | null;
+  oversubscribed: boolean | null;
+}
+
+export interface SenDetail {
+  year: number;
+  primary_need_speech_pct: number | null;
+  primary_need_autism_pct: number | null;
+  primary_need_mld_pct: number | null;
+  primary_need_spld_pct: number | null;
+  primary_need_semh_pct: number | null;
+  primary_need_physical_pct: number | null;
+  primary_need_other_pct: number | null;
+}
+
+export interface Phonics {
+  year: number;
+  year1_phonics_pct: number | null;
+  year2_phonics_pct: number | null;
+}
+
+export interface SchoolDeprivation {
+  lsoa_code: string | null;
+  idaci_score: number | null;
+  idaci_decile: number | null;
+}
+
+export interface SchoolFinance {
+  year: number;
+  per_pupil_spend: number | null;
+  staff_cost_pct: number | null;
+  teacher_cost_pct: number | null;
+  support_staff_cost_pct: number | null;
+  premises_cost_pct: number | null;
 }
 
 // ============================================================================
@@ -152,6 +248,15 @@ export interface SchoolDetailsResponse {
   school_info: School;
   yearly_data: SchoolResult[];
   absence_data: AbsenceData | null;
+  // Supplementary data (null until Kestra populates)
+  ofsted: OfstedInspection | null;
+  parent_view: OfstedParentView | null;
+  census: SchoolCensus | null;
+  admissions: SchoolAdmissions | null;
+  sen_detail: SenDetail | null;
+  phonics: Phonics | null;
+  deprivation: SchoolDeprivation | null;
+  finance: SchoolFinance | null;
 }
 
 export interface ComparisonData {