Jason Woltje 8b9d19347f feat(appservice): @mosaicstack/appservice — Matrix AS core (M4a, agent-comms#9) ...

First phase of mosaic-as per agent-comms docs/design/M4-MOSAIC-AS.md:
- TransactionHandler: AS transactions endpoint logic with timing-safe
  hs_token verification (Bearer + legacy access_token), bounded txnId
  dedupe (documented at-least-once limitation), handler error isolation
- AppserviceIntent: virtual user registration (m.login.application_service),
  user_id impersonation, invite-then-join fallback, thread-aware sends
  (m.thread + is_falling_back), typing, display names, uuid txn ids
- Registration builder + hardened YAML serializer (control-char rejection,
  quote escaping) for the Synapse mosaic-as.yaml
- bridge.dto.ts validators for the agent-comms daemon bridge API
Zero runtime deps; strict ESM/NodeNext; 14 vitest tests.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

2026-06-10 16:09:11 -05:00

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