Add --jira.apiToken alias for Jira Cloud authentication

[dspasojevic]

Summary

The current CLI authentication options are confusing for Jira Cloud users. The --jira.password option is used with API tokens, but the naming suggests a password.

Current State

For Jira Cloud API token authentication, users must use:

--jira.username your-email@example.com \
--jira.password YOUR_API_TOKEN

This is counterintuitive since the "password" is actually an API token.

Proposed Change

Add a --jira.apiToken alias (or alternative option) that makes Jira Cloud authentication clearer:

--jira.username your-email@example.com \
--jira.apiToken YOUR_API_TOKEN

Implementation Notes

• Could be a simple alias to --jira.password in the yargs configuration
• Or a new dedicated auth method jiraClientWithApiToken(email, apiToken) for clarity
• Should update help text to explain the difference between Server PAT and Cloud API tokens

Auth Methods Reference

Jira Type	Current Option	Auth Style
Server/DC PAT	--jira.personalAccessToken	Bearer token
Cloud API Token	--jira.username + --jira.password	Basic auth
OAuth	Consumer key/secret + access tokens	OAuth 1.0a