ADR 0004 — routing.yaml, profile = directory, session map

Status: accepted 2026-09-13. routing.yaml (repo root example) is the schema: profiles, routes, whatsapp, telegram, defaults. Session key platform:chat[:thread] → UUID in ~/.angelia/sessions.json with full history; /new mints, /resume lists. One in-process queue per key; a pidfile makes the daemon the only writer. Unmatched chats are dropped silently by default. Envelope goes in user text ([whatsapp group 1203…@g.us · Owner]\n<text>), never in the system prompt.