分享码功能的实现，并修复了几个 bug

client/src/lib/aiApi.ts

@@ -7,6 +7,7 @@ import {
   LuxsinAPI,
   PeqFilter,
   FILTER_TYPE_LABELS,
+  buildPeqPresetBody,
   dbToVolume,
   volumeToDb,
 } from "./luxsinApi";
@@ -34,6 +35,8 @@ export interface OptimizePeqPayload {
   name?: string;
   brand?: string;
   model?: string;
+  target?: string;
+  form?: string;
   preamp?: number;
   canDel?: number;
   autoPre?: number;
@@ -327,13 +330,19 @@ export async function executeFrontendTool(
       case "set_peq": {
         const p = block.input ?? {};
         await api.upgradePeqChange({
-          peqChange: {
-            name: p.name,
-            filters: p.filters ?? [],
-            autoPre: p.autoPre,
-            preamp: p.preamp,
-            canDel: p.canDel,
-          },
+          peqChange: buildPeqPresetBody(
+            {
+              name: p.name,
+              brand: p.brand,
+              model: p.model,
+              target: p.target,
+              form: p.form,
+              autoPre: p.autoPre,
+              preamp: p.preamp,
+              canDel: p.canDel,
+            },
+            (p.filters ?? []) as PeqFilter[],
+          ),
         });
         await api.refreshState();
         return { ok: true, content: { ok: true, name: p.name } };

client/src/lib/luxsinApi.ts

@@ -145,6 +145,7 @@ export interface PeqState {
     canDel?: number;
     brand?: string;
     model?: string;
+    target?: string;
     form?: string;
   }>;
 }
@@ -162,6 +163,38 @@ export interface PeqPresetBody {
   form?: string;
 }
 
+/** PEQ preset metadata used when building peqChange / peqApply bodies. */
+export type PeqPresetMeta = {
+  name: string;
+  autoPre?: number;
+  preamp?: number;
+  canDel?: number;
+  brand?: string;
+  model?: string;
+  target?: string;
+  form?: string;
+};
+
+/** Build device PEQ POST body; optional brand/model/target/form included only when non-empty. */
+export function buildPeqPresetBody(peq: PeqPresetMeta, filters: PeqFilter[]): PeqPresetBody {
+  const body: PeqPresetBody = {
+    name: peq.name,
+    filters,
+    autoPre: peq.autoPre ?? 0,
+    preamp: peq.preamp ?? 0,
+    canDel: peq.canDel ?? 1,
+  };
+  const brand = peq.brand?.trim();
+  const model = peq.model?.trim();
+  const target = peq.target?.trim();
+  const form = peq.form?.trim();
+  if (brand) body.brand = brand;
+  if (model) body.model = model;
+  if (target) body.target = target;
+  if (form) body.form = form;
+  return body;
+}
+
 /** POST body for `/dev/info.cgi` — full peq preset update (custom base64 `json` field). */
 export interface PeqChangePayload {
   peqChange: PeqPresetBody;
@@ -635,3 +668,110 @@ export async function fetchLuxsinAudioCurve(
   const body = (await res.text()).trim();
   return decodeCustomBase64(body);
 }
+
+// ============================================================
+// Share Code API — shareCreate / shareList / shareQuery / shareAccept
+// ============================================================
+
+export interface ShareCodeCreateResponse {
+  code: number;
+  msg: string;
+  share_code?: string;
+  expire_at?: string;
+  eq_data?: Record<string, unknown>;
+}
+
+export interface ShareCodeListItem {
+  share_code: string;
+  expire_at: string;
+  eq_data: Record<string, unknown>;
+}
+
+export interface ShareCodeListResponse {
+  code: number;
+  msg: string;
+  share_codes: ShareCodeListItem[];
+}
+
+export interface ShareCodeAcceptResponse {
+  code: number;
+  msg: string;
+  eq_data?: Record<string, unknown>;
+}
+
+export interface ShareCodeQueryResponse {
+  code: number;
+  msg: string;
+  eq_data?: Record<string, unknown>;
+  expire_at?: string;
+}
+
+/** Unwrap stringified PEQ filters (remove JSON escape layers) for API submit. */
+export function normalizePeqFiltersForSubmit(filters: unknown): PeqFilter[] {
+  if (Array.isArray(filters)) return filters as PeqFilter[];
+  if (typeof filters !== "string" || !filters.trim()) return [];
+
+  let current: unknown = filters.trim();
+  for (let depth = 0; depth < 3; depth++) {
+    if (Array.isArray(current)) return current as PeqFilter[];
+    if (typeof current !== "string") return [];
+    try {
+      current = JSON.parse(current);
+    } catch {
+      return [];
+    }
+  }
+  return Array.isArray(current) ? (current as PeqFilter[]) : [];
+}
+
+/** POST `/audio/shareCreate` — 创建 EQ 分享码，返回 share_code + expire_at + eq_data */
+export async function createShareCode(
+  mac: string,
+  eqData: Record<string, unknown>,
+): Promise<ShareCodeCreateResponse> {
+  const payload = {
+    ...eqData,
+    ...(eqData.filters !== undefined
+      ? { filters: normalizePeqFiltersForSubmit(eqData.filters) }
+      : {}),
+  };
+  const res = await fetch(buildLuxsinAudioUrl("shareCreate"), {
+    method: "POST",
+    headers: { "Content-Type": "application/json" },
+    body: JSON.stringify({ mac, eq_data: payload }),
+  });
+  if (!res.ok) throw new Error(`shareCreate HTTP ${res.status}`);
+  return (await res.json()) as ShareCodeCreateResponse;
+}
+
+/** GET `/audio/shareList?mac=...` — 查询某 MAC 尚未过期的分享码列表 */
+export async function listShareCodes(mac: string): Promise<ShareCodeListResponse> {
+  const res = await fetch(
+    buildLuxsinAudioUrl(`shareList?mac=${encodeURIComponent(mac)}`),
+  );
+  if (!res.ok) throw new Error(`shareList HTTP ${res.status}`);
+  return (await res.json()) as ShareCodeListResponse;
+}
+
+/** GET `/audio/shareQuery?shareCode=...` — 预览分享码 EQ 数据（不记录导入） */
+export async function queryShareCode(shareCode: string): Promise<ShareCodeQueryResponse> {
+  const res = await fetch(
+    buildLuxsinAudioUrl(`shareQuery?shareCode=${encodeURIComponent(shareCode)}`),
+  );
+  if (!res.ok) throw new Error(`shareQuery HTTP ${res.status}`);
+  return (await res.json()) as ShareCodeQueryResponse;
+}
+
+/** GET `/audio/shareAccept?mac=...&shareCode=...` — 确认导入分享码并记录流水 */
+export async function acceptShareCode(
+  mac: string,
+  shareCode: string,
+): Promise<ShareCodeAcceptResponse> {
+  const res = await fetch(
+    buildLuxsinAudioUrl(
+      `shareAccept?mac=${encodeURIComponent(mac)}&shareCode=${encodeURIComponent(shareCode)}`,
+    ),
+  );
+  if (!res.ok) throw new Error(`shareAccept HTTP ${res.status}`);
+  return (await res.json()) as ShareCodeAcceptResponse;
+}