[Config Refactor] Migrate 5 TTS models (VoxCPM2 / CosyVoice3 / MiMo Audio / Voxtral TTS / Fish Speech S2 Pro) to Pipeline + Deploy schema (#2958)

Signed-off-by: Yueqian Lin <linyueqian@outlook.com>
Co-authored-by: SYLAR <125541396+lishunyang12@users.noreply.github.com>

docs/serving/speech_api.md

@@ -22,21 +22,10 @@ vllm serve Qwen/Qwen3-TTS-12Hz-1.7B-CustomVoice \
     --enforce-eager
 
 # Fish Speech S2 Pro
-vllm-omni serve fishaudio/s2-pro \
-    --stage-configs-path vllm_omni/model_executor/stage_configs/fish_speech_s2_pro.yaml \
-    --omni \
-    --port 8091 \
-    --trust-remote-code \
-    --enforce-eager \
-    --gpu-memory-utilization 0.9
+vllm serve fishaudio/s2-pro --omni --port 8091
 
 # Voxtral TTS
-vllm serve mistralai/Voxtral-4B-TTS-2603 \
-    --stage-configs-path vllm_omni/model_executor/stage_configs/voxtral_tts.yaml \
-    --omni \
-    --port 8091 \
-    --trust-remote-code \
-    --enforce-eager
+vllm serve mistralai/Voxtral-4B-TTS-2603 --omni --port 8091
 ```
 
 ### Generate Speech