Add public route request logging middleware

[Chucks1093]

Summary

Add a lightweight request logging middleware for public routes.

Acceptance Criteria

• logs method, path, status, and duration
• avoids logging sensitive data by default
• can be enabled/disabled via config

Contributor coordination: https://t.me/accesslayerorg

[Wilfred007]

@Wilfred007 has applied to work on this issue as part of the Stellar Wave Program's 3rd wave.

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Congratulations, @Wilfred007! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on March 30, 2026.

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[drips-wave]

This issue has been completed by @Wilfred007 as part of the Stellar Wave Program's 3rd Wave 🥳

😎 @Wilfred007: You earned 200 Points for completing this issue! After the current Wave ends, you'll be eligible for a percentage of the Wave's reward pool based on the percentage of total points you've earned. Learn more here. You can also Leave a review to share your experience working on this issue.

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