- gais_data.py: rewrite to load Edubase CSV into Supabase gais_schools +
gais_local_authorities via two-pass batch upsert (LAs first for FK integrity)
- school_router.py: add GET /school/search (trigram ilike on name, URN exact),
POST /school/register (create institute + Neo4j provision + membership link)
- Encoding: handles Windows-1252 (cp1252) Edubase CSV format
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
