修复 bug

client/src/pages/eq/peqMappers.ts

@@ -6,6 +6,21 @@ export function cloneBands(source: EqBand[]) {
   return source.map((band) => ({ ...band }));
 }
 
+/** Dev: log decoded syncPeq JSON after EQ page fetches device PEQ state. */
+export function logEqSyncPeqDev(source: string, data: PeqState): void {
+  if (!import.meta.env.DEV) return;
+  console.log(`[EQ syncPeq] ${source}`, data);
+}
+
+export async function fetchEqSyncPeq(
+  api: { getPeqState: () => Promise<PeqState> },
+  source: string,
+): Promise<PeqState> {
+  const data = await api.getPeqState();
+  logEqSyncPeqDev(source, data);
+  return data;
+}
+
 export function buildPeqCatalogSyncKey(
   remote: Pick<PeqState, "peq" | "peqSelect"> | null | undefined,
   devicePeqSelect?: number,