Introduce a new submodule for g2pw and implement AsyncStageGate in PrepareCoordinator to manage concurrent task inflight limits. Update PrepareTextCpuWorker and PrepareRefSemanticBatchWorker to support asynchronous task submission and completion notifications. Enhance profiling capabilities in TTS to track g2pw processing times, improving overall performance and maintainability of the TTS system.
Introduce new modules including unified_engine_api_direct, unified_engine_api_profile, unified_engine_api_request, and unified_engine_api_scheduler. These additions enhance the TTS system by providing structured interfaces for direct TTS execution and scheduler-based processing. The new components support improved request handling, profiling, and state management, significantly enhancing the architecture and maintainability of the TTS framework.