Regenerate existing mise wrappers via migration

The generator fix only helps fresh installs; existing wrappers in
~/.local/bin keep the recursive exec line until rewritten. Detect the
generated wrapper shape, extract package and bin, and reinstall each
one, which also repairs wrappers users created for their own packages.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

migrations/1784909971.sh

@@ -0,0 +1,12 @@
+echo "Regenerate mise wrappers to stop them recursing through PATH"
+
+for wrapper in "$HOME/.local/bin"/*; do
+  [[ -f $wrapper && -x $wrapper ]] || continue
+
+  package=$(sed -n 's/^mise use -g "\(.*\)"$/\1/p' "$wrapper")
+  bin=$(sed -n 's/^exec "\(.*\)" "\$@"$/\1/p' "$wrapper")
+
+  if [[ -n $package && -n $bin ]]; then
+    omarchy-mise-install "$package" "$(basename "$wrapper")" "$bin"
+  fi
+done