chore(main): release 0.5.0

[github-actions]

🤖 I have created a release beep boop

0.5.0 (2026-09-02)

Features

• server-ai: stamp modelKey and modelVersion on AI usage events (AIC-2857) (e6ae12d)
• server-ai: stamp modelKey and modelVersion on AI usage events (AIC-2857) (#36) (2f7fda4)

Bug Fixes

• server-ai: rename tracked_model_version to model_version (503ccc5)
• server-ai: stop exposing model_key/model_version on ModelConfig (25d962e)

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This PR was generated with Release Please. See documentation.

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Note

Overview
Release Please bumps launchdarkly-server-sdk-ai from 0.4.0 to 0.5.0 in .release-please-manifest.json, lib/server/ai/version.rb, and the provenance doc example in PROVENANCE.md.

CHANGELOG.md gains a 0.5.0 section documenting what ships in this release (already merged elsewhere): AI usage events include modelKey and modelVersion, tracked_model_version was renamed to model_version, and model_key / model_version were removed from the public ModelConfig surface.

There are no runtime or API code changes in this diff—only version metadata and release notes.

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