Upstream reorganized the multi-skill layout (#887: long-tail skills folded
into dingtalk-misc, dws-shared renamed to dingtalk-shared). Conflict
resolution keeps this branch's multi-by-default semantics (install.sh /
install.ps1 / skill setup default to multi; interactive prompts list multi
first) and adapts the cleanup paths to the rename: cleanup predicates now
recognize both dingtalk-shared (new bundle name, covered by the dingtalk-
prefix) and the legacy dws-shared so full installs and mode switches remove
pre-rename leftovers.
Co-authored-by: Cursor <cursoragent@cursor.com>