Replace depricated url.parse with the WHATWG URL API

[w666]

close #1380

[Copilot]

Pull request overview

This PR attempts to replace the deprecated url.parse() API with the WHATWG URL API to resolve Node.js v24 deprecation warnings. The changes affect URL parsing in WSDL processing, HTTP client request building, and server request handling.

Changes:

• Removed url module imports from src/wsdl/index.ts, src/server.ts, and src/http.ts
• Replaced url.parse() and url.resolve() calls with WHATWG URL API constructors
• Added helper functions getServerBaseUrl() and getPortFromUrl() to support URL parsing
• Modified IExpressApp interface to extend http.Server
• Added try-catch error handling to a test case

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 10 comments.

File	Description
src/wsdl/index.ts	Replaced url.resolve() with WHATWG URL API for WSDL include resolution
src/server.ts	Replaced url.parse() with WHATWG URL API, added getServerBaseUrl() helper, modified IExpressApp interface
src/http.ts	Replaced url.parse() with WHATWG URL API, added getPortFromUrl() helper function
test/client-test.js	Added try-catch error handling to Host header test

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