timeout handling

[Jadit19]

fixes #14

[Copilot]

Pull Request Overview

This PR implements improvements to timeout handling and error response handling for the network client. Key changes include updating print method signatures to include const qualifiers, adding a buildDefaultResponse helper to centralize error responses based on HTTP status codes, and revising the non-blocking connection logic in the client.

Reviewed Changes

Copilot reviewed 11 out of 11 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
src/messages/response.cpp	Updated print() signature with const qualifiers to support functional const correctness.
src/messages/request.cpp	Similar update to print() for consistency.
src/helpers/client.cpp	Added buildDefaultResponse and enhanced error/timeout handling in the send() method.
src/client/client.cpp	Revised non-blocking connect() using fcntl, select, and improved timeout settings.
include/mochios/messages/*.h	Updated method declarations to match the new const-qualified print() signature.
include/mochios/client/options.h	Added a timeout field to the Connection struct simplifying timeout configuration.
example/main.cpp	Updated error handling in the main driver code to capture and report connection issues.

[github-actions]

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