Pumping-station demo overhaul + cross-node test harness + bumps

Submodule bumps land the deadlock fix (state.js residue unpark + MGC
optimalControl dispatch reorder) and pumpingStation stopLevel hysteresis.

- Renames examples/pumpingstation-3pumps-dashboard →
  pumpingstation-complete-example with regenerated flow.json. New
  dashboard groups, demand-broadcast wiring, S88 placement rule
  applied, ui-chart trend-split and link-channel naming follow
  .claude/rules/node-red-flow-layout.md.
- New cross-node test harness under test/: end-to-end-pumpingstation
  drives PS + MGC + 3 pumps + physics simulator end-to-end and
  verifies the ~5/15 min cycle.
- Adds Grafana provisioning dashboards (pumping-station.json) and a
  helper sync-example.sh script for export/import to live Node-RED.
- Docker entrypoint + settings + compose tweaks for the persistent
  user dir layout used by the demo.

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

docker/settings.js

@@ -15,10 +15,22 @@ module.exports = {
     // No authentication for dev environment
     adminAuth: null,
 
-    // Disable projects (we use git directly)
+    // Projects ON: each example folder under /data/projects is a Node-RED
+    // project (a small Git repo). Operator switches between them in the
+    // editor (Projects → Open Project). The entrypoint bootstraps every
+    // examples/<name>/ into /data/projects/<name>/ on first run; after
+    // that, edits live in the persistent nodered_data volume. To copy
+    // edits back into the EVOLV source tree, run:
+    //   docker cp evolv-nodered:/data/projects/<name>/flow.json \
+    //       examples/<name>/flow.json
     editorTheme: {
         projects: {
-            enabled: false
+            enabled: true,
+            workflow: {
+                // Manual: editor doesn't auto-commit. Use the Projects UI
+                // (or `git` from a shell into the container) to commit.
+                mode: 'manual'
+            }
         }
     },