feat: materialize award references into the QSO row (award_refs column)

Award refs are now computed once and stored on the QSO as a JSON column
(award_refs, e.g. {"DDFM":"74","WAJA":"12"}) instead of recomputing the whole
award engine on every grid page load. Written on log/edit/UDP-import and
bulk-recomputed when an award definition or reference list changes; a one-time
per-logbook backfill materializes pre-existing QSOs. The grid reads the column
directly like any other field, so it's fast and available everywhere (including
the shared MySQL logbook).

Also fix per-profile grid column layout: the DB copy was already per-profile,
but the localStorage cache used one global namespace and shadowed it, so a
profile switch kept the previous profile's columns/widths. gridPrefs now scopes
the cache by active profile id and the grids remount on profile:changed.

frontend/src/lib/gridPrefs.ts

@@ -6,11 +6,32 @@
 // back to the DB copy and re-seed the cache.
 import { GetUIPref, SetUIPref } from '../../wailsjs/go/main/App';
 
+// The DB copy is ALREADY per-profile (the backend prefixes every ui.* key with
+// the active profile id). The localStorage cache, however, is one namespace for
+// the whole WebView, so without scoping it too a profile switch would keep
+// serving the previous profile's cached layout and the correct per-profile DB
+// value would never win. lsScope makes the cache per-profile as well; it's set
+// once the active profile is known and updated on every profile switch.
+let lsScope = '';
+
+// setGridPrefsProfile scopes the localStorage cache to a profile. Call it before
+// the grids read their state (at startup) and again whenever the active profile
+// changes so each profile keeps its own column layout / widths.
+export function setGridPrefsProfile(id: number | string | null | undefined): void {
+  lsScope = id == null || id === '' ? '' : `p${id}.`;
+}
+
+// lsKey scopes ONLY the localStorage cache key. The DB key passed to
+// GetUIPref/SetUIPref is left untouched — the backend already scopes it.
+function lsKey(key: string): string {
+  return lsScope + key;
+}
+
 // loadLocal reads the cached column state synchronously (used in onGridReady
 // to apply instantly, before the async DB round-trip).
 export function loadLocal(key: string): any[] | null {
   try {
-    const raw = localStorage.getItem(key);
+    const raw = localStorage.getItem(lsKey(key));
     const v = raw ? JSON.parse(raw) : null;
     return Array.isArray(v) ? v : null;
   } catch {
@@ -29,15 +50,16 @@ export async function loadRemote(key: string): Promise<any[] | null> {
   }
 }
 
-// saveState write-throughs to both the cache and the DB (fire-and-forget).
+// saveState write-throughs to both the cache and the DB (fire-and-forget). Only
+// the cache key is profile-scoped; the DB key is scoped by the backend.
 export function saveState(key: string, state: any[]) {
   const json = JSON.stringify(state);
-  try { localStorage.setItem(key, json); } catch { /* quota / private mode */ }
+  try { localStorage.setItem(lsKey(key), json); } catch { /* quota / private mode */ }
   SetUIPref(key, json).catch(() => { /* DB unavailable — cache still holds it */ });
 }
 
 // seedLocal writes a value into the cache without touching the DB (used after
 // hydrating the cache from the DB on a fresh machine).
 export function seedLocal(key: string, state: any[]) {
-  try { localStorage.setItem(key, JSON.stringify(state)); } catch { /* ignore */ }
+  try { localStorage.setItem(lsKey(key), JSON.stringify(state)); } catch { /* ignore */ }
 }