infra(nginx): Add WebSocket proxy configuration

[zeemscript]

Description:
Configure nginx to properly proxy WebSocket connections for Socket.io or similar real-time features. Include proper upgrade headers and connection management.

Acceptance Criteria:

• Upgrade and Connection headers configured
• proxy_http_version 1.1 set
• Appropriate timeouts for long-lived connections
• Location block for WebSocket endpoints

Files to create:

• nginx/websocket.conf - WebSocket proxy configuration

[ayushi-wq]

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I would like to work on this issue.

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[Ayfataan]

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

I would like to work on this issue. I’ve gone through the project and carefully reviewed the issue itself, and I believe it’s something I can handle effectively. I’m confident in my ability to work on it, give it my best, and get it completed successfully. I’m ready to take on the task and deliver a solid result.

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[khaylebfortune]

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

please assign.

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[drips-wave]

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

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[grantfox-oss]

🎉 This issue has been marked as completed on GrantFox as part of the Third Campaign campaign!

@khaylebfortune's PR #381 was approved and merged by @zeemscript.

🏆 @khaylebfortune: You earned 35 FoxPoints for this contribution! Your current tier: Explorer (783 total points). Track your full progress on GrantFox.

👏 Great work, @khaylebfortune! Keep contributing to Deen-Bridge.

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This issue has been completed by @khaylebfortune as part of the Stellar Wave Program's 8th Wave 🥳

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