Create pf-reproduce-issue agent

[patternfly-jira-sync]

Agent that attempts automated reproduction of a GitHub issue — parses the description, sets up an environment, runs repro steps, captures pass/fail with error output.

AC:

• Agent exists in pf-internal plugin

• Parses a GitHub issue and attempts automated reproduction

• Reports pass/fail with captured errors or screenshots

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Jira Issue: PF-4186