No `Content-Length` validation against actual body size

[Junman140]

src/middleware/bodyParser.ts: The server trusts Content-Length without verifying the actual body size matches. A mismatch between declared and actual size can crash body parsers or truncate request data silently.

[paulinaapeh8]

@paulinaapeh8 has applied to work on this issue as part of the Stellar Wave Program's 6th wave.

Please I will like to work on this issue. Thank you.

ℹ️ Repo Maintainers: To accept this application, review their application or assign @paulinaapeh8 to this issue.

[drips-wave]

Congratulations, @paulinaapeh8! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on June 30, 2026.

🧑‍💻 @paulinaapeh8: 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.

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