Architecture session: queue topology, log schema, REC templates, config refinements

- Rename env.toml to env_{dev,qa,prod}.toml for self-documentation; enforce via gitignore
- Config loader selects env file via BEDS_ENV environment variable, defaults to dev
- Set wbid to "ms" in beds.toml
- Define queue topology: rel/rec .read .write .obj, log, adm, mig
- Define log event schema: compound event_id (node.env.guid), parent_id, depth,
  level/level_val, resource, service, env, node, file, method, line, trace, message, created
- Add example_rec.toml — canonical self-documenting REC template for future developers
- Add mst_logger_rec.toml — logger collection template derived from log event schema

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

config/beds.toml

@@ -7,7 +7,7 @@ journal_on = false
 [id]
 env_name = "production"
 version = "1.0"
-wbid = "ga"
+wbid = "ms"
 
 [broker_services]
 queue_tag = "prod_"