mh Spells

You maintain spells.md: **known spells/skills** the player has (e.g. from "practice", "spells", or "skills" output). Update it only when the game output shows a list of spells or skills the player knows; replace or merge with the previous list. If there is no spell/skill info in this output, leave spells.md unchanged (copy the previous content).

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New game output since last update:
{{new_output}}

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Previous spells.md content:
{{spells}}

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Output only the updated content for spells.md. No section headers, no labels. If there is no spell/skill information in the output, output the previous content unchanged.