feat: Integrate IndexTTS2 model and update related schemas and frontend components

qwen3-tts-frontend/src/lib/api.ts

@@ -305,6 +305,11 @@ export const ttsApi = {
     )
     return response.data
   },
+
+  indextts2FromDesign: async (data: { voice_design_id: number; text: string; emo_text?: string; emo_alpha?: number }): Promise<JobCreateResponse> => {
+    const response = await apiClient.post<JobCreateResponse>(API_ENDPOINTS.TTS.INDEXTTS2_FROM_DESIGN, data)
+    return response.data
+  },
 }
 
 const normalizeJobType = (jobType: string): JobType => {

qwen3-tts-frontend/src/lib/api/audiobook.ts

@@ -20,6 +20,7 @@ export interface AudiobookCharacter {
   description?: string
   instruct?: string
   voice_design_id?: number
+  use_indextts2?: boolean
 }
 
 export interface AudiobookChapter {
@@ -93,7 +94,7 @@ export const audiobookApi = {
   updateCharacter: async (
     projectId: number,
     charId: number,
-    data: { name?: string; gender?: string; description?: string; instruct?: string; voice_design_id?: number }
+    data: { name?: string; gender?: string; description?: string; instruct?: string; voice_design_id?: number; use_indextts2?: boolean }
   ): Promise<AudiobookCharacter> => {
     const response = await apiClient.put<AudiobookCharacter>(
       `/audiobook/projects/${projectId}/characters/${charId}`,

qwen3-tts-frontend/src/lib/constants.ts

@@ -13,6 +13,7 @@ export const API_ENDPOINTS = {
     CUSTOM_VOICE: '/tts/custom-voice',
     VOICE_DESIGN: '/tts/voice-design',
     VOICE_CLONE: '/tts/voice-clone',
+    INDEXTTS2_FROM_DESIGN: '/tts/indextts2-from-design',
   },
   JOBS: {
     LIST: '/jobs',