Add HTTP server setup with config and TLS support

[molon]

No description provided.

[Copilot]

Pull Request Overview

This PR adds HTTP server setup functionality with configuration support and TLS capabilities. It introduces a new server module that provides dependency injection-based server lifecycle management and configurable security features.

• Adds HTTP server factory functions with dependency injection integration
• Implements TLS certificate support via base64-encoded configuration
• Adds comprehensive server configuration including timeouts and security settings

Reviewed Changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 3 comments.

File	Description
httpx/server.go	New HTTP server implementation with TLS support and lifecycle management
httpx/example/config.yaml	Example configuration file demonstrating server settings
httpx/config.go	Configuration structs for HTTP server, TLS, and security options
go.mod	Moved golang.org/x/net from indirect to direct dependency

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