feat: deliver versioned SIP config to Cells

deploy/mock.env.example

@@ -2,8 +2,13 @@
 RABBITMQ_DEFAULT_USER=agent_call_mock
 RABBITMQ_DEFAULT_PASS=replace-before-start
 RABBITMQ_URL=amqp://agent_call_mock:replace-before-start@rabbitmq:5672/%2f
+ASR_WEB_TOKEN=local-asr-test
 # JSON map: token -> tenant IDs and scopes. Inject through a secret manager in real deployments.
 HTTP_TOKENS={"local":{"tenant_ids":["tenant-demo"],"scopes":["outbound.read","outbound.control","recording.upload","recording.complete"]}}
+# Independent SIP management credentials; synthetic local values only.
+SIP_MANAGEMENT_PORT=18090
+SIP_ADMIN_TOKENS={"admin-local":{"subject":"ops","issuer":"local","audience":"agent-call.sip-admin","scopes":["*"],"trunk_ids":"*"}}
+SIP_READ_TOKENS={"saas-local":{"subject":"saas","issuer":"local","audience":"agent-call.sip-read","scopes":["sip.trunk.read"],"trunk_ids":["trunk-mock"]}}
 AGENT_CALL_MODE=mock
 BROKER_MODE=rabbit
 AGENT_CALL_PORT=18080