chore: release v2.2.0

[jdx]

🤖 New release: v2.2.0

This PR bumps the workspace to v2.2.0 and regenerates CHANGELOG entries, aube.usage.kdl, the CLI docs, and the benchmark results.

See the diff for the full set of changes, or the per-crate CHANGELOG.md files for the release notes that will ship.

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Generated by the release-plz-pr workflow.

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Note

Low Risk
Mechanical version and changelog release PR with no application logic changes; install/embed behavior was already merged in prior PRs.

Overview
Release packaging for v2.2.0: bumps [workspace.package].version and every aube-* crate entry in Cargo.lock from 2.1.0 to 2.2.0, and updates release.json with the new version and release timestamp.

Shipped user-facing notes (documented in crate changelogs, not new code in this diff): embedders get an exposed node-gyp bootstrap API ([#1365]); install bundles curated package extensions ([#1369]). The PR description also mentions regenerated usage/docs/benchmarks artifacts that may land outside the shown diff.

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[greptile-apps]

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