fix: camelCase field names + dial uses per-agent config

Defect 5: Worklist, missed-call-webhook, missed-queue, ai-chat, and
rules-engine all used legacy lowercase field names (callbackstatus,
callsourcenumber, missedcallcount, callbackattemptedat) from the old
VPS schema. Fixed to camelCase (callbackStatus, callSourceNumber,
missedCallCount, callbackAttemptedAt) matching the current SDK sync.

Defect 6: Dial endpoint used global defaults (OZONETEL_AGENT_ID env
var) instead of the logged-in agent's config. Now accepts agentId
and campaignName from the frontend request body. Falls back to
telephony config → DID-derived campaign name → explicit error.

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

src/worklist/worklist.service.ts

@@ -97,13 +97,13 @@ export class WorklistService {
         try {
             // 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: { 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 }
                     startedAt endedAt durationSec
                     disposition leadId
-                    callbackstatus callsourcenumber missedcallcount callbackattemptedat
+                    callbackStatus callSourceNumber missedCallCount callbackAttemptedAt
                 } } } }`,
                 undefined,
                 authHeader,