fix: restore overview workstream mode reactivity

dashboard/src/index.md

@@ -252,16 +252,20 @@ _modeSelect.value = _savedChartMode;
 _modeSelect.addEventListener("input", () => {
   globalThis.__stateHubOverviewChartMode = _modeSelect.value;
 });
+_modeSelect.addEventListener("change", () => {
+  globalThis.__stateHubOverviewChartMode = _modeSelect.value;
+});
 
 // view() is the idiomatic Observable Framework reactive input:
 // it displays the element AND returns a reactive value that re-runs dependent blocks.
 const _chartMode = _modeValue(view(_modeSelect));
-const _chartWsFiltered = _workstreamsForMode(_chartMode, wsAll);
 ```
 
 ```js
 import * as Plot from "npm:@observablehq/plot";
 
+const _chartWsFiltered = _workstreamsForMode(_chartMode, wsAll);
+
 // Sort by domain, then repository, then most recently updated workstream.
 // The axis labels show each domain/repo group once.
 const chartWs = [..._chartWsFiltered].sort((a, b) => {

workplans/STATE-WP-0057-overview-workstream-stage-counts.md

@@ -239,6 +239,12 @@ accurate workstream counts for all mode groups.
 - `npm run test` in `dashboard/` passed 11 tests.
 - `npm run build` in `dashboard/` passed: Observable built 61 pages and
   validated 49 links.
+- 2026-06-07 follow-up: Fixed a selector reactivity regression where
+  `_chartWsFiltered` was computed in the same cell as `view(_modeSelect)`.
+  Moving `_chartWsFiltered = _workstreamsForMode(_chartMode, wsAll)` into the
+  downstream chart cell restored filtering when operators choose a mode other
+  than `active`. Added a `change` listener alongside `input` for persisted mode
+  selection. `npm run test` and `npm run build` both passed after the fix.
 - Browser click-through remains pending because the Codex in-app browser bridge
   failed to start in this session with a Windows sandbox setup failure, and no
   local Playwright/Puppeteer package is installed for a headless fallback.