fix: build errors — JsSIP types, LeadActivity fields, telephony config

- supervisor-sip-client: use RTCSession as any (JsSIP types mismatch)
- patient-360: add missing LeadActivity fields (createdAt, channel, etc)
- telephony-settings: add adminUsername/adminPassword to loadConfig

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

src/pages/telephony-settings.tsx

@@ -36,6 +36,8 @@ export const TelephonySettingsPage = () => {
                     did: data.ozonetel?.did ?? '',
                     sipId: data.ozonetel?.sipId ?? '',
                     campaignName: data.ozonetel?.campaignName ?? '',
+                    adminUsername: data.ozonetel?.adminUsername ?? '',
+                    adminPassword: data.ozonetel?.adminPassword ?? '',
                 },
                 sip: {
                     domain: data.sip?.domain ?? 'blr-pub-rtc4.ozonetel.com',