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/worklist.service.ts

@@ -76,9 +76,9 @@ export class WorklistService {
 
     private async getMissedCalls(agentName: string, authHeader: string): Promise<any[]> {
         try {
-            // FIFO ordering (AscNullsLast) — oldest first. Filter to active callback statuses only.
+            // FIFO ordering (AscNullsLast) — oldest first. No agentName filter — missed calls are a shared queue.
             const data = await this.platform.queryWithAuth<any>(
-                `{ calls(first: 20, filter: { agentName: { eq: "${agentName}" }, callStatus: { eq: MISSED }, callbackstatus: { in: [PENDING_CALLBACK, CALLBACK_ATTEMPTED] } }, orderBy: [{ startedAt: AscNullsLast }]) { edges { node {
+                `{ calls(first: 20, filter: { callStatus: { eq: MISSED }, callbackstatus: { in: [PENDING_CALLBACK, CALLBACK_ATTEMPTED] } }, orderBy: [{ startedAt: AscNullsLast }]) { edges { node {
                     id name createdAt
                     direction callStatus agentName
                     callerNumber { primaryPhoneNumber }