api: add test — `GET /assets` handles asset id 0 and `u64::MAX` without panicking

[valoryyaa-byte]

Type: Test coverage

Location: api/src/routes/assets.rs

What's missing
Boundary ids should return 404 cleanly rather than trapping or overflowing.

How to add it
Use the existing routes::test_support::state_with helper to build an
AppState from a fixed Snapshot, call the handler directly, and assert on
the serialized body. Follow the patterns already in api/tests/api_responses.rs.

[gregthelma8-eng]

@gregthelma8-eng has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

hi maintainer i would love to be asigned to this issue

ℹ️ Repo Maintainers: To accept this application, review their application or assign @gregthelma8-eng to this issue.

[ponmileleke54-dev]

@ponmileleke54-dev has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

I would like to work on this

ℹ️ Repo Maintainers: To accept this application, review their application or assign @ponmileleke54-dev to this issue.

[drips-wave]

Congratulations, @gregthelma8-eng! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on August 31, 2026.

🧑‍💻 @gregthelma8-eng: Please resolve the issue such that the repo's maintainers have enough time to review your contribution before the due date. You'll earn Points for completing the issue on-time, which will make you eligible for a share of the Stellar Wave Program's reward pool.

Warning

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