拆分 EQPage 页面，新增分享码功能，修复 bug，优化性能

client/src/pages/eq/peqMappers.ts

@@ -1,5 +1,5 @@
 import { getFilterType } from "@/lib/peqAudio";
-import type { PeqFilter, PeqState } from "@/lib/luxsinApi";
+import { normalizePeqFiltersForSubmit, type PeqFilter, type PeqState } from "@/lib/luxsinApi";
 import type { EqBand } from "./types";
 
 export function cloneBands(source: EqBand[]) {
@@ -54,3 +54,15 @@ export function bandToPeqFilter(b: {
     type: getFilterType(b.type),
   };
 }
+
+export function importedFiltersToPeqFilters(filters: unknown): PeqFilter[] {
+  return normalizePeqFiltersForSubmit(filters).map((f) => {
+    const item = f as unknown as Record<string, unknown>;
+    return {
+      fc: Number(item.fc ?? item.freq ?? item.frequency ?? 1000),
+      gain: Number(item.gain ?? 0),
+      q: Number(item.q ?? 1),
+      type: getFilterType(item.type as string | number),
+    };
+  });
+}