[Tech Review]: Higress

### Project name

Higress

### Project link

https://github.com/higress-group/higress

### Due diligence link

_No response_

### Project contact information

- Yuanxiao Zhao: @EndlessSeeker
- Tianyi Zhang: @johnlanni
- Yiquan Dong: @CH3CHO

### Additional information

Higress is a CNCF Sandbox project preparing for an Incubation application and is requesting an independent General Technical Review from the CNCF Project Reviews SubProject.

This request supersedes #2262, which was created through the GitHub CLI and did not receive the standard Project Reviews labels.

Review materials:

- Project-wide community and governance repository:
https://github.com/higress-group/community
- Project-maintained General Technical Review:
https://github.com/higress-group/community/blob/main/docs/cncf/general-technical-review.md
- Incubation application working draft:
https://github.com/higress-group/community/blob/main/docs/cncf/incubation-application.md
- Governance Review working copy:
https://github.com/higress-group/community/blob/main/docs/cncf/governance-review.md
- Security Self-Assessment:
https://github.com/higress-group/community/blob/main/docs/cncf/security-self-assessment.md
- Architecture documentation:
https://github.com/higress-group/higress/blob/main/docs/architecture.md
- Public roadmap:
https://github.com/higress-group/community/blob/main/ROADMAP.md
- Public adopters:
https://github.com/higress-group/community/blob/main/ADOPTERS.md
- Maintainers:
https://github.com/higress-group/community/blob/main/MAINTAINERS.md
- Public community meetings:
https://github.com/higress-group/community/blob/main/MEETINGS.md
- OpenSSF Best Practices badge:
https://www.bestpractices.dev/projects/12667
- Sandbox application and successful vote:
https://github.com/cncf/sandbox/issues/445
- Completed Sandbox onboarding:
https://github.com/cncf/sandbox/issues/481

The project-maintained General Technical Review was approved in higress-group/higress#4177 and subsequently refreshed as part of the project's Incubation preparation. Project-wide review materials are now maintained in higress-group/community.

We welcome an independent reviewer assessment and will address findings through public issues and pull requests. We request coordination of the final dated review snapshot under:

projects/higress/tech-review/YYYY-MM-DD.md

Start by reading the project-maintained General Technical Review, then compare the architecture.md, governance-review.md, security-self-assessment.md, and incubation-application.md materials linked in the issue. Assess the project independently and record the dated final review snapshot under projects/higress/tech-review/YYYY-MM-DD.md; findings should be addressable through public issues and pull requests.

Written by the indexing model from the issue text.