Add customization of Claude Code binary path in query and connect functions

[c7secceo]

Allow to pass SubprocessCLITransport'scli_path (binary path of Claude Code) from higher-level functions, such as general query() and ClaudeSDKClient.connect().

Or they are supposed to be so high-level that they shouldn't be worried about the specification of CLI path?

[dicksontsai]

I think this change is fine. Can you please fix lint and the merge conflicts from #91 ?

[rushikeshraut777]

@c7secceo looking forward for this to get merged soon