feat: start logging diff comparing with delta

[sjaanus]

Now when client/features is called, it will also call delta API and verify that payload matches.

This is behind feature flag.

[github-actions]

Dependency Review

The following issues were found:

• ✅ 0 vulnerable package(s)
• ✅ 0 package(s) with incompatible licenses
• ✅ 0 package(s) with invalid SPDX license definitions
• ⚠️ 1 package(s) with unknown licenses.

See the Details below.

License Issues

server/Cargo.toml

Package	Version	License	Issue Type
unleash-yggdrasil	>= 0.14.6, < 0.15.0	Null	Unknown License

Denied Licenses: GPL-1.0, GPL-2.0, GPL-3.0, LGPL-2.1, LGPL-3.0, AGPL-3.0

OpenSSF Scorecard

Package	Version	Score	Details
cargo/difflib	0.4.0	🟢 3.3	Details Check Score Reason Dangerous-Workflow ⚠️ -1 no workflows found Token-Permissions ⚠️ -1 No tokens found Code-Review ⚠️ 2 Found 4/18 approved changesets -- score normalized to 2 Packaging ⚠️ -1 packaging workflow not detected Binary-Artifacts 🟢 10 no binaries found in the repo Pinned-Dependencies ⚠️ -1 no dependencies found Maintained ⚠️ 0 0 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 0 CII-Best-Practices ⚠️ 0 no effort to earn an OpenSSF best practices badge detected Security-Policy ⚠️ 0 security policy file not detected Fuzzing ⚠️ 0 project is not fuzzed Vulnerabilities 🟢 10 0 existing vulnerabilities detected License 🟢 10 license file detected Signed-Releases ⚠️ -1 no releases found Branch-Protection ⚠️ 0 branch protection not enabled on development/release branches SAST ⚠️ 0 SAST tool is not run on all commits -- score normalized to 0
cargo/json-structural-diff	0.2.0	Unknown	Unknown
cargo/unleash-types	0.15.4	Unknown	Unknown
cargo/unleash-yggdrasil	0.14.6	Unknown	Unknown
cargo/json-structural-diff	>= 0.2.0, < 0.3.0	Unknown	Unknown
cargo/unleash-types	>= 0.15.4, < 0.16.0	Unknown	Unknown
cargo/unleash-yggdrasil	>= 0.14.6, < 0.15.0	Unknown	Unknown

Scanned Files

• Cargo.lock
• server/Cargo.toml

[sighphyre]

Sure

[chriswk]

why did it suddenly need a clone?

[sjaanus]

It was due to

 --> server/src/http/refresher/feature_refresher.rs:526:50
    |
512 |                 etag: refresh.etag,
    |                       ------------ value partially moved here
...
526 |                         self.compare_delta_cache(&refresh).await;
    |                                                  ^^^^^^^^ value borrowed here after partial move

[chriswk]

Some nits, but I'm 👍 here. Good job