fix: loosen /plugin endpoint test

[cirex-web]

Loosens the /api/admin/extend/plugins endpoint constraints so the test actually passes

[railway-app]

🚅 Deployed to the nodebb-spring-26-clean-cod-pr-35 environment in Clean Code Team (nodebb)

Service	Status	Web	Updated (UTC)
nodebb-spring-26-clean-code	🕒 Building (View Logs)	Web	Feb 11, 2026 at 12:24 am

[coveralls]

Pull Request Test Coverage Report for Build 21887738210

Warning: This coverage report may be inaccurate.

This pull request's base commit is no longer the HEAD commit of its target branch. This means it includes changes from outside the original pull request, including, potentially, unrelated coverage changes.

• For more information on this, see Tracking coverage changes with pull request builds.
• To avoid this issue with future PRs, see these Recommended CI Configurations.
• For a quick fix, rebase this PR at GitHub. Your next report should be accurate.

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 78.872%

---

Totals
Change from base Build 21810999844:	0.0%
Covered Lines:	25384
Relevant Lines:	30354

---

💛 - Coveralls