Tasks

• Bun workspace asr/server/ with Hono + @hono/zod-openapi + Zod routes
• app.doc31('/openapi.json'); root serves /.well-known/openapi.json as the same bytes
• RFC 9727 /.well-known/api-catalog
• POST /api/v1/transcribe wired to the warm sidecar
• Bind Tailscale IPv4 :8750 only
• bun test via app.request for spec equality + transcribe 422/503 shapes