feat(service): P5.3 inbound adapter pipeline (ACK-fast webhook + RawEventProjector) + traceId

POST /v1/adapters/:type/webhook verifies HMAC (fail-closed) -> stores raw ->
emits raw.received -> 202. RawEventProjector consumes it off the relay, normalizes
via the adapter, reuses IngestService (traceId threaded raw->interaction).
Deduped on (channelType, externalEventId). rawBody enabled. 48 tests.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

pnpm-lock.yaml

@@ -153,6 +153,9 @@ importers:
 
   packages/iios-service:
     dependencies:
+      '@insignia/iios-adapter-sdk':
+        specifier: workspace:*
+        version: link:../iios-adapter-sdk
       '@insignia/iios-contracts':
         specifier: workspace:*
         version: link:../iios-contracts