chore(release): prepare dhttp v0.6.2

[metah3m]

Summary

• preserve access-rule priority during deduplication, upgrades, and repeated application
• align the production DHTTP bootstrap constants with dyns
• prepare Rust, PyPI, and npm packages as stable releases

Release

• Planned tag: v0.6.2
• Dependency gate: dyns 0.7.2, dquic 0.7.1, and h3x 0.6.1
• Publish dhttp and dhttp-api 0.6.2, dhttp-access 0.4.2, dhttpy 0.6.2, and @genmeta/dhttp 0.6.2
• Rerun CI and refresh Cargo.lock after dyns 0.7.2 is published

Verification

• Release metadata and JSON package versions were reviewed.
• Local tests were not rerun per release instruction.

Release notes

Preserve access-rule priority across storage migrations and repeated rule application while restoring the stable crates.io dependency chain.

[codecov]

Codecov Report

❌ Patch coverage is 86.36364% with 12 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
access/src/db/service/location_service.rs	61.29%	12 Missing ⚠️

Files with missing lines	Coverage Δ
access/src/db/evaluator.rs	97.34% <100.00%> (+0.47%)	⬆️
access/src/db/mod.rs	95.50% <100.00%> (+0.12%)	⬆️
...igration/m20260807_120000_unique_location_rules.rs	50.00% <ø> (ø)
access/src/db/service/location_service.rs	86.75% <61.29%> (+0.12%)	⬆️

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