feat: webhook field fixes, Force Ready endpoint, improved error logging

- Fix Call record field names (recording, callerNumber, durationSec)
- Add POST /api/ozonetel/agent-ready using logout+login for Force Ready
- Add callerNumber to kookoo callback
- Better error logging with response body

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

src/ozonetel/kookoo-ivr.controller.ts

@@ -25,12 +25,10 @@ export class KookooIvrController {
         // New outbound call — customer answered, put them in a conference room
         // The room ID is based on the call SID so we can join from the browser
         if (event === 'NewCall') {
-            // Try dialing the SIP extension with 0 prefix (internal routing)
-            const ext = query.ext ?? `0${this.sipId}`;
-            this.logger.log(`Customer ${cid} answered — dialing agent at ${ext}`);
+            this.logger.log(`Customer ${cid} answered — dialing DID ${this.callerId} to route to agent`);
             return `<?xml version="1.0" encoding="UTF-8"?>
 <response>
-<dial record="true" timeout="30" moh="ring">${ext}</dial>
+<dial record="true" timeout="30" moh="ring">${this.callerId}</dial>
 </response>`;
         }