claude-bot 4ee0a59f2b installer: wipe mods/ before install and rename extracted map to pack name ...

Two follow-ups requested by the user (and the first flagged by the
reviewer for omission):

1) Different Minecraft versions or different packs leave behind mod jars
   that crash Fabric on load. `downloadModsFolder` now removes the entire
   `.mc_custom/mods/` directory before every install — including when the
   pack is vanilla (no modsFolder) so leftovers from a previous modded
   pack get cleared too.

2) `downloadMapZip` renames the single extracted top-level folder to the
   pack name (sanitized for Windows: forbidden chars `<>:"/\|?*` and
   control chars → `_`, trailing space/dot trimmed, reserved names like
   CON/NUL prefixed, empty fallback to `map`). Collisions with user
   worlds get `_2`, `_3` … suffixes so we never overwrite the user's
   own worlds. The marker file tracks the post-rename folder so future
   participant cleanup still removes only what the installer created.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

2026-05-18 00:06:11 +09:00

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