[rcaril]

Change summary

This PR the AI Runtime Control packages in line with the latest AI Firewall release. Internal references linked here.

Virtual keys

• Keys can now be created and updated with AI Firewall settings, requests-per-minute and
  tokens-per-minute limits, and a spend limit.
• New GetFailover and UpdateFailover operations manage a key's failover policy.
• Rotate no longer requires an expiration. If omitted, the rotated key doesn't expire.

Provider connections

• Connections can now use Bedrock or Vertex authentication, in addition to API keys.
• New GetBedrockSetup and GetVertexSetup operations return the values needed to
  configure the cloud-side trust before creating those connections.

Sessions and usage metrics

• Both now report the primary provider, meaning the connection that was originally
  requested before any failover.
• Usage metrics List now pages through all results automatically, like the other list
  operations.

All Submissions:

• Have you followed the guidelines in our Contributing document?
• Have you checked to ensure there aren't other open Pull Requests for the same update/change?

New Feature Submissions:

• Does your submission pass tests?

Changes to Core Features:

• Have you written new tests for your core changes, as applicable?
• Have you successfully run tests with your changes locally?

User Impact

Users can now manage Virtual Key security, rate limits, spend limits, and failover policies, and can create Bedrock and Vertex AI provider connections.

Are there any considerations that need to be addressed for release?

The following are breaking changes:

• usagemetrics.List now returns []UsageMetric instead of *UsageMetrics.
• key.CreateInput.UserID has been removed.
• key.Rotate no longer requires ExpiresAt, and leaving it out clears the key's
  expiration.

[rcaril]

Adding both @kpfleming and @anthony-gomez-fastly as this is a breaking change.

[kpfleming]

Some small changes, along with the change from Failover to FailoverPolicy, but overall this looks very good!