add fixture-invoicing example, sample-room wrap, kind cluster support

- examples/fixture-invoicing/: FastAPI + Vue + Postgres demo (4-entity invoice fixture)
- cfg/sample/: wraps the fixture (managed.repos points at examples/)
- ctrl/kind-{up,down,status}.sh + per-room k8s render in soleprint/ctrl/k8s/
- build.py: relative repo paths, resilient rmtree, optional k8s render hook
- cfg/.gitignore: stop ignoring sample/ and standalone/ template rooms

Manifests render cleanly but kind cluster has not been run end-to-end yet.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

cfg/sample/ctrl/deploy.sh

@@ -0,0 +1,62 @@
+#!/bin/bash
+# Deploy dlt to AWS
+#
+# Usage:
+#   ./ctrl/deploy.sh              # Sync and restart
+#   ./ctrl/deploy.sh --rebuild    # Rebuild container image
+#   ./ctrl/deploy.sh --dry-run    # Preview sync
+
+set -e
+
+SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
+ROOM_DIR="$(dirname "$SCRIPT_DIR")"
+ROOM_NAME="$(basename "$ROOM_DIR")"
+SPR_DIR="$(cd "$ROOM_DIR/../.." && pwd)"
+
+SERVER="${DEPLOY_SERVER:-mcrn.ar}"
+REMOTE_BASE="${DEPLOY_REMOTE_PATH:-~/soleprint/gen}"
+REMOTE_PATH="$REMOTE_BASE/$ROOM_NAME/soleprint"
+LOCAL_PATH="$SPR_DIR/gen/$ROOM_NAME/soleprint"
+
+DRY_RUN=""
+REBUILD=""
+[ "$1" == "--dry-run" ] && DRY_RUN="--dry-run"
+[ "$1" == "--rebuild" ] && REBUILD="--build"
+
+# Check if built
+if [[ ! -d "$LOCAL_PATH" ]]; then
+    echo "Error: $LOCAL_PATH not found"
+    echo "Build first: cd $SPR_DIR && python build.py --cfg $ROOM_NAME"
+    exit 1
+fi
+
+echo "=== Deploying $ROOM_NAME to $SERVER ==="
+
+# Sync files, excluding local-only
+rsync -avz --delete --progress $DRY_RUN \
+    --exclude='.env' \
+    --exclude='__pycache__/' \
+    --exclude='*.pyc' \
+    --exclude='**/storage/' \
+    "$LOCAL_PATH/" \
+    "$SERVER:$REMOTE_PATH/"
+
+if [ -n "$DRY_RUN" ]; then
+    echo "=== Dry run complete ==="
+    exit 0
+fi
+
+# Get container name from AWS .env
+CONTAINER_NAME=$(ssh "$SERVER" "grep DEPLOYMENT_NAME $REMOTE_PATH/.env 2>/dev/null | cut -d= -f2" || echo "${ROOM_NAME}_spr")
+
+echo ""
+echo "=== Restarting $CONTAINER_NAME ==="
+ssh "$SERVER" "cd $REMOTE_PATH && docker compose down && docker compose up -d $REBUILD"
+
+echo ""
+echo "=== Connecting to gateway network ==="
+ssh "$SERVER" "docker network connect gateway $CONTAINER_NAME 2>/dev/null || true"
+
+echo ""
+echo "=== Done ==="
+echo "Test at: https://$ROOM_NAME.spr.mcrn.ar"