Extend Twilio API mocks with additional endpoints

Summary

The current Twilio samples (twilio-api-mocks and twilio-resilience-testing) cover 51 endpoints for the most commonly used Twilio operations. This issue tracks expanding coverage to additional Twilio API resources.

Current Coverage (51 mocks)

• Accounts - CRUD operations
• Messages - CRUD + Media subresource
• Calls - CRUD + Recordings subresource
• IncomingPhoneNumbers - CRUD + Local/TollFree/Mobile
• AvailablePhoneNumbers - Local/TollFree/Mobile search
• Conferences - CRUD + Participants
• Queues - CRUD + Members
• Recordings - CRUD + Transcriptions

Proposed Additions

High Priority (commonly used)

• Addresses - CRUD + DependentPhoneNumbers (SID: AD)
• Applications - CRUD for TwiML apps (SID: AP)
• Usage Records - List + subresources (Daily, Monthly, Today, Yesterday, ThisMonth, LastMonth)
• Usage Triggers - CRUD for usage alerts

Medium Priority

• Transcriptions - CRUD operations
• Notifications - List notifications
• Outgoing Caller IDs - CRUD operations
• Short Codes - List/Update operations
• Keys - API key management

Lower Priority (specialized use cases)

• SIP Domains - SIP trunking resources
• Connect Apps - Twilio Connect
• Authorized Connect Apps - App authorizations

Out of Scope

These are separate Twilio products with different base URLs (not part of the core 2010-04-01 API):

• Verify API
• Lookup API
• Conversations API
• Video API
• Studio API
• TaskRouter API
• Flex API
• Sync API
• Notify API

Notes

• Both twilio-api-mocks (success responses) and twilio-resilience-testing (error injection) should be updated together
• Follow existing mock patterns and SID formats
• Reference Twilio docs for accurate response schemas

Review existing endpoint patterns in the twilio-api-mocks and twilio-resilience-testing samples, then compare the proposed resources with Twilio's core 2010-04-01 documentation. Done means both samples cover the agreed endpoints with accurate response schemas, SID formats, and success/error behavior.