Prepare for release v5.1.0

[ggoranov-smar]

Summary

Release prep for v5.1.0 (minor — all changes additive). Bumps version to 5.1.0 in package.json and package-lock.json (top-level only) and stamps the CHANGELOG Unreleased section with ## [5.1.0] - 2026-06-26.

Released content accumulated on mainline since v5.0.1:

• Added: GET path endpoints (getSheetPath, getReportPath, getSightPath, getFolderPath) with getLeaf<Asset>() / getLeaf<Asset>Path() traversal helpers.

Test plan

• CI build + tests pass on the release branch

[coveralls]

Coverage Report for CI Build 28226012185

Warning

No base build found for commit 83839b5 on mainline.
Coverage changes can't be calculated without a base build.
If a base build is processing, this comment will update automatically when it completes.

Coverage: 95.386%

Details

• Patch coverage: No coverable lines changed in this PR.

Uncovered Changes

No uncovered changes found.

Coverage Regressions

Requires a base build to compare against. How to fix this →

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Coverage Stats

Relevant Lines:	1271
Covered Lines:	1226
Line Coverage:	96.46%
Relevant Branches:	246
Covered Branches:	221
Branch Coverage:	89.84%
Branches in Coverage %:	Yes
Coverage Strength:	1735.06 hits per line

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💛 - Coveralls