SMS: statistics and suppressions on the public API

Two parts of SMS that were dashboard-only are now on the public API, with typed SDK methods, bird CLI commands, and MCP tools for each.

Getting started

• SMS stats API
• Opt-outs

What's available

• Statistics: the aggregate summary, the daily and hourly series, and breakdowns by destination country, carrier, originator, category, status, and failure reason, plus counts of what your numbers received, by country, operator, and number. The same aggregation the Metrics dashboard reads.
• Suppressions: list who your senders may not message and why, check one subscriber before sending to them, and add or end a suppression of your own. A send to a suppressed pair is refused with SMSRecipientSuppressed rather than going out.
• Message timeline: a message's lifecycle events are now a public read, alongside the message itself.
• Everywhere you build: the API, the Go, TypeScript, Python, and PHP SDKs, bird sms stats, bird sms suppressions, and bird sms list-events on the CLI, and the matching MCP tools.