Add Simtricity Communities developer portal and API documentation

[damonrand]

Summary

• New developer portal homepage with service catalog
• Interactive API documentation using Scalar for PostgREST schemas
• Kong routing updates for home app and Studio
• Security improvements (removed anon key, added basic auth to docs)
• Kong 3.10 upgrade planning documentation

Changes

Home Application

• Deployed to supabase-home-mgf (Deno/Hono)
• Service catalog with 5 categories (Infrastructure, Supabase APIs, Simtricity APIs, Internal Apps, Websites)
• Scalar integration for MyEnergy, Flows, and Flux schema documentation
• Source: https://github.com/simtricity/simt-supabase-home

Kong Configuration

• OpenAPI spec routes: /openapi/rest/{myenergy,flows,flux} (unauthenticated, for Scalar)
• Kong status: /kong-info, /kong-version (basic auth)
• Home routes: / (public), /api/docs/* (basic auth)
• Studio routes: /studio, /project/*, /api/* (basic auth, fixed conflicts)

Security

• Removed anon key from docs pages
• API docs protected with basic auth (DASHBOARD credentials)
• All secrets via Fly environment variables
• Private IPv6 allocated for Flycast networking

Deployment Status

✅ Home app deployed and healthy
✅ Kong deployed with new routing
✅ Studio access verified
✅ API docs working with schema-specific authentication

Test URLs

• Homepage: https://supabase-kong-mgf.fly.dev/
• API Docs: https://supabase-kong-mgf.fly.dev/api/docs (requires basic auth)
• Studio: https://supabase-kong-mgf.fly.dev/project/default (requires basic auth)

Secrets Required

When deploying to new environments, set:

fly secrets set \
  SUPABASE_SERVICE_KEY="..." \
  FLOWS_ROLE_JWT="..." \
  FLUX_JWT="..." \
  --app supabase-home-<org>