fix(admin): keep list state in the URL and browser storage

- listState.ts stores each list's query (search, sort, dir, page, per_page,
  filter[name]) under summer-admin.list:<controller>; an empty query is
  never stored, malformed stored values are dropped like a hand-edited URL
- ListView restores the stored query into the URL before its first list
  request when entered without list params; a URL with list params wins
- a 422 forgets the stored query; an out-of-range page clamps to last_page
- logout clears every stored list query
- check-phase10.sh allows browser storage in useSidebar.ts and listState.ts
- list smoke tests start from a clean list state
- rebuilt modules/boardwalk/dist

admin/src/state/useSidebar.ts

@@ -2,7 +2,9 @@
 // D-06, D-10). The section panel hides below about 1100px or when the admin
 // collapses it. The viewport only forces the collapse and never overwrites
 // the admin's own choice, which persists in localStorage as a boolean under
-// SIDEBAR_KEY. Nothing else is ever written to browser storage (T-10-22).
+// SIDEBAR_KEY. The only other writer of browser storage is listState.ts,
+// which keeps list query parameters per list; tokens and record data are
+// never stored (T-10-22, T-16.1-03).
 import { computed, readonly, ref } from 'vue'
 
 export const SIDEBAR_KEY = 'summer-admin.sidebar'