ren worker folder adding orig, mv new one into root

worker-toolkit-potion-polyglot/scripts/build-workspace.sh

@@ -99,8 +99,11 @@ if [ "$BROWSER_OPTIN" = "1" ]; then
     fi
 fi
 
-# Resolve commit
-RESOLVED_SHA=$(git -C "$REPO_DIR" rev-parse "$COMMIT")
+# Resolve commit. Goes through resolve_pin so a task pinned before a history
+# rewrite still builds: the pin is translated via task-shared/commit-maps/.
+# shellcheck source=lib/resolve-pin.sh
+. "$(dirname "$0")/lib/resolve-pin.sh"
+RESOLVED_SHA=$(resolve_pin "$REPO_DIR" "$COMMIT" "$TOOLKIT_ROOT/task-shared/commit-maps" "$MEMBER") || exit 1
 echo "  Resolved SHA: $RESOLVED_SHA"
 
 # --- Member-specific setup ---------------------------------------------------