Backup/main before squash 517

[bahdotsh]

Summary

Related issues

Closes #

Type of change

• feat — new feature
• fix — bug fix
• docs — documentation only
• refactor — code change that neither fixes a bug nor adds a feature
• perf — performance improvement
• test — adding or correcting tests
• chore — build, tooling, or dependency changes

Checklist

• cargo fmt --all -- --check passes
• cargo clippy --workspace -- -D warnings passes
• cargo test --workspace passes
• cargo-deny is satisfied (no new license/advisory violations)
• Commits follow Conventional Commits (<type>(<scope>): <subject>)
• Docs / CHANGELOG.md updated where relevant
• No new unsafe in core crates (only the offline-protocol-uniffi FFI boundary may use it, with SAFETY comments)
• If the UniFFI UDL changed, bindings were regenerated (./scripts/generate-bindings.sh) and all three — Swift, Kotlin, Python — committed together; a partial set fails at runtime, not build time

Breaking changes

None

Notes for reviewers

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