Loaded up for the 3rd redo

Still on potion-voice

worker-toolkit-potion-polyglot/harbor-tasks/_task-scaffold/environment/Dockerfile

@@ -0,0 +1,32 @@
+# POLYGLOT TOOLKIT — choose your member's base image before building.
+#
+# This toolkit bundles many repos with DIFFERENT runtimes (Ruby 3.1/3.2.x, Node, Python), so a
+# single scaffold can't know which member your task targets. This placeholder intentionally stops
+# the build until you replace it with the correct per-member base.
+#
+# From the toolkit root, replace this file with your member's Dockerfile:
+#
+#   cp task-shared/Dockerfile.<your-member> harbor-tasks/<your-slug>/environment/Dockerfile
+#
+# Then build the workspace. That step also stages your member's test/lint/typecheck
+# checks into tests/test-commands.sh — the grader runs them and uses the results as
+# evidence for the correctness score, so don't skip it:
+#
+#   bash scripts/build-workspace.sh <your-slug>
+#
+# (It reports which checks it staged, or says so when your member has none.)
+#
+# List the members:   ls task-shared/Dockerfile.*
+#
+# (Tasks made with the snapshot workflow pick the right Dockerfile automatically — only the
+#  manual `cp -r _task-scaffold` flow needs this step.)
+FROM alpine:3
+RUN echo "" >&2; \
+    echo "ERROR: this is the polyglot scaffold placeholder — it must be replaced before building." >&2; \
+    echo "  cp task-shared/Dockerfile.<your-member> harbor-tasks/<your-slug>/environment/Dockerfile" >&2; \
+    echo "  (list members: ls task-shared/Dockerfile.* — see the comments at the top of this file)" >&2; \
+    echo "" >&2; \
+    echo "Then build the workspace — it stages your member's test/lint/typecheck checks," >&2; \
+    echo "which the grader uses as evidence for the correctness score:" >&2; \
+    echo "  bash scripts/build-workspace.sh <your-slug>" >&2; \
+    exit 1