fix: align Jira provider with jira-cli commands

[haosenwang1018]

Summary

• switch Jira auth verification from jira session to jira me
• fetch Jira issue payloads with jira issue view --raw
• add regression coverage for the Jira command strings used by the provider

Related Issues

Part of #457

Changes Made

• add small helpers for the auth-check and issue-view commands so the provider uses one consistent jira-cli dialect
• update the timeout/recovery messaging to reference jira me
• cover the command selection in tests/issue-providers.test.js

Testing

• ./node_modules/.bin/mocha tests/issue-providers.test.js tests/providers/detection.test.js

Checklist

• Tests pass (npm test)
• Documentation updated (if needed)
• Follows commit guidelines