fix(call-attribution): resolve Ozonetel chain AgentNames to agent.id

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

src/worklist/missed-call-webhook.controller.ts

@@ -1,5 +1,6 @@
 import { Controller, Post, Body, Headers, Logger } from '@nestjs/common';
 import { PlatformGraphqlService } from '../platform/platform-graphql.service';
+import { AgentLookupService } from '../platform/agent-lookup.service';
 import { CallerResolutionService } from '../caller/caller-resolution.service';
 import { ConfigService } from '@nestjs/config';
 
@@ -22,6 +23,7 @@ export class MissedCallWebhookController {
         private readonly platform: PlatformGraphqlService,
         private readonly config: ConfigService,
         private readonly caller: CallerResolutionService,
+        private readonly agentLookup: AgentLookupService,
     ) {
         this.apiKey = config.get<string>('platform.apiKey') ?? '';
     }
@@ -197,6 +199,25 @@ export class MissedCallWebhookController {
             callData.recording = { primaryLinkUrl: data.recordingUrl, primaryLinkLabel: 'Recording' };
         }
 
+        // Resolve agent relation at write-time so the supervisor dashboard
+        // can bucket the row immediately. Ozonetel sends transferred calls
+        // with a chain-style AgentName like "RamaiahAdmin -> GlobalHealthX" —
+        // the final handler is the last segment, so split on " -> " and
+        // resolve that. Try both ozonetelAgentId (lowercase unique) and
+        // ozonetelDisplayName (mixed-case human label) since Ozonetel mixes
+        // formats across webhook payloads. Leaves agentId null on miss so
+        // the cdr-enrichment cron can still attempt a match by UCID later.
+        if (data.agentName) {
+            const segments = data.agentName.split('->').map((s) => s.trim()).filter(Boolean);
+            const finalHandler = segments[segments.length - 1];
+            if (finalHandler) {
+                const uuid =
+                    (await this.agentLookup.resolveByOzonetelId(finalHandler)) ??
+                    (await this.agentLookup.resolveByDisplayName(finalHandler));
+                if (uuid) callData.agentId = uuid;
+            }
+        }
+
         const result = await this.platform.queryWithAuth<any>(
             `mutation($data: CallCreateInput!) { createCall(data: $data) { id } }`,
             { data: callData },