fix: appointmentStatus→status, missed call visibility, webhook callbackstatus, KB logging

- Renamed appointmentStatus to status in search + call-assist queries
- Missed calls worklist: removed agentName filter (shared FIFO queue)
- Webhook sets callbackstatus: PENDING_CALLBACK on missed calls
- AI chat: added KB content logging for debugging

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

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

@@ -135,6 +135,11 @@ export class MissedCallWebhookController {
             durationSec: data.duration,
             disposition: this.mapDisposition(data.disposition),
         };
+        // Set callback tracking fields for missed calls so they appear in the worklist
+        if (data.callStatus === 'MISSED') {
+            callData.callbackstatus = 'PENDING_CALLBACK';
+            callData.missedcallcount = 1;
+        }
         if (data.recordingUrl) {
             callData.recording = { primaryLinkUrl: data.recordingUrl, primaryLinkLabel: 'Recording' };
         }