feat(voice): switch TTS to Seed 2.0 uranus voices

Use classic male/female and sunny-sweet speakers with seed-tts-2.0 resource id.

mytoolkit/api/voice.py

@@ -5,24 +5,36 @@ import json
 import uuid
 from pathlib import Path
 
-_RESOURCE_ID = "volc.service_type.10029"
+# TTS 1.0 (moon/mars) vs 2.0 (uranus / ICL_uranus)
+_RESOURCE_TTS_1 = "volc.service_type.10029"
+_RESOURCE_TTS_2 = "seed-tts-2.0"
 _ENDPOINT = "wss://openspeech.bytedance.com/api/v3/tts/unidirectional/stream"
 
+# Product labels: 经典男声 / 经典女声 / 阳光甜妹
 _VOICE_CHOICES = [
-    "zh_female_cancan_mars_bigtts",
-    "zh_female_shuangkuaisisi_moon_bigtts",
-    "zh_male_wennuanahu_moon_bigtts",
-    "zh_male_sunwukong_moon_bigtts",
+    "zh_male_m191_uranus_bigtts",
+    "zh_female_xiaohe_uranus_bigtts",
+    "ICL_uranus_zh_female_yuanqitianmei_tob",
 ]
 
+_DEFAULT_VOICE = "zh_female_xiaohe_uranus_bigtts"
+
 _FORMAT_CHOICES = ["mp3", "wav", "pcm"]
 
 
+def resource_id_for_speaker(speaker: str) -> str:
+    """Pick Volcengine resource id for a speaker."""
+    s = speaker or ""
+    if "uranus" in s or s.startswith("ICL_uranus_"):
+        return _RESOURCE_TTS_2
+    return _RESOURCE_TTS_1
+
+
 def synthesize_tts(
     appid: str,
     token: str,
     text: str,
-    speaker: str = "zh_male_wennuanahu_moon_bigtts",
+    speaker: str = _DEFAULT_VOICE,
     fmt: str = "mp3",
     speech_rate: int = 0,
     output_path: str = "output.mp3",
@@ -42,7 +54,7 @@ def synthesize_tts(
     headers = {
         "X-Api-App-Id": appid,
         "X-Api-Access-Key": token,
-        "X-Api-Resource-Id": _RESOURCE_ID,
+        "X-Api-Resource-Id": resource_id_for_speaker(speaker),
         "X-Api-Connect-Id": str(uuid.uuid4()),
     }