plan: fix stats re-registration ordering after config change

docs/superpowers/plans/2026-08-14-usage-stats-gpu-combos.md

@@ -798,9 +798,16 @@ type InflightSettings = CfgSettings & {
     state.unwatchStats = undefined;
 ```
 
-5. In `onDidReceiveSettings`, after `state.settings = ev.payload.settings;`, add re-registration:
+5. In `onDidReceiveSettings`, the re-registration must come AFTER
+   `runtime.ensureConnections(...)` (config changes recreate the
+   `StatsCache`, so registering earlier would land on the stale cache).
+   Change the tail of the method to:
 
 ```ts
+    state.settings = ev.payload.settings;
+    state.action = ev.action;
+    state.history = [];
+    runtime.ensureConnections(cfgFromSettings(state.settings));
     state.unwatchStats?.();
     state.unwatchStats = undefined;
     if (this.displayOf(state) === "usage") {
@@ -808,6 +815,7 @@ type InflightSettings = CfgSettings & {
     } else if (!state.sampler) {
       state.sampler = setInterval(() => this.sample(state), 1000);
     }
+    this.render(state);
 ```
 
 6. Replace `render` with a mode-switching version and add helpers: