v0.4.0

What's New

• New tool: update_ticket — Update ticket fields (Subject, Priority, Queue) via a single tool call. All fields are optional, so you can update any subset. Wraps the existing client.update_ticket() method that was previously only used internally.

Details

• Tool count: 16 → 17
• Closes #1
• All 5 quality gates passed (ruff, mypy, 40/40 pytest, gourmand, container build)