feat: Archipelago demo stack (lightweight)

neode-ui/loop/prepare.sh

@@ -0,0 +1,38 @@
+#!/usr/bin/env sh
+# Pre-run script: verify repo state and create overnight branch.
+set -eu
+
+PROJECT_DIR="${CLAUDE_PROJECT_DIR:-$(cd "$(dirname "$0")/.." && pwd)}"
+cd "$PROJECT_DIR"
+
+DATE=$(date '+%Y-%m-%d')
+BRANCH="overnight/${DATE}"
+
+echo "=== neode-ui overnight pre-run check @ $(date '+%Y-%m-%dT%H:%M:%S') ==="
+
+# 1. Check git status is clean
+if ! git diff --quiet || ! git diff --cached --quiet; then
+  echo "Error: Working tree not clean. Commit or stash changes first." >&2
+  git status --short >&2
+  exit 1
+fi
+
+# 2. Check we're not already on an overnight branch
+current=$(git branch --show-current 2>/dev/null || true)
+if [ -n "$current" ] && [ "$current" = "$BRANCH" ]; then
+  echo "Already on $BRANCH. Ready to run." >&2
+  exit 0
+fi
+
+# 3. Create date-stamped branch
+if git rev-parse --verify "$BRANCH" >/dev/null 2>&1; then
+  echo "Branch $BRANCH already exists. Checkout or use a different date." >&2
+  exit 1
+fi
+git checkout -b "$BRANCH"
+echo "Created branch $BRANCH"
+
+echo ""
+echo "Reminder: Push before starting overnight run: git push -u origin $BRANCH"
+echo "Then run: caffeinate -i ./loop/loop.sh"
+echo "=== Ready ==="