Inbound transferred calls arrive with AgentName like 'RamaiahAdmin -> GlobalHealthX'. The webhook was persisting the raw chain string and leaving agentId null; the CDR enrichment cron then silently skipped 100% of rows because the bulk CDR keys on caller-leg UCID while the webhook stores monitorUCID — the join never matched.
- missed-call-webhook: split chain on ' -> ', take final handler,
resolve via AgentLookupService (ozonetelAgentId + display name)
- cdr-enrichment: index CDR rows by both UCID and monitorUCID so
the cron actually patches historical rows
- enrichment also parses chain in CDR AgentName as a second fallback
- spec: add CallerResolutionService + AgentLookupService mocks