chore: release v6.9.1

[mise-en-dev]

🐛 Bug Fixes

• (docs) align benchmark section by @jdx in 1f0d82f
• (parse) keep implicit default after a default-only flag by @lu-zero in #1418

🔍 Other Changes

• (go) tidy the Go modules, require Go 1.26, and run go fix by @sahidvelji in #1421
• (go) lint every Go module with gofumpt, golangci-lint, and go fix by @sahidvelji in #1425
• replace lefthook with hk for git hooks by @sahidvelji in #1422

New Contributors

• @sahidvelji made their first contribution in #1425

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[greptile-apps]

Confidence Score: 5/5

The PR appears safe to merge; the release metadata and package versions are consistent, with no actionable regression identified.

Summary

• Bumps all shared-version Usage crates and their internal dependency requirements to 6.9.1.
• Updates CLI specification and generated reference documentation to report 6.9.1.
• Records the release changes and refreshes resolved transitive dependencies.

_{Reviews (5) · Last reviewed commit: "chore: release v6.9.1"}