[VA-136] Support Vad params

[stavelmashally]

No description provided.

[Copilot]

Pull Request Overview

This PR adds support for Voice Activity Detection (VAD) parameters in the speech-to-text client. The implementation allows users to configure VAD settings such as threshold, minimum speech duration, minimum silence duration, and maximum segment duration for both streaming and file transcription operations.

• Adds VadConfig dataclass with optional VAD parameters
• Integrates vad_config parameter into both sync and async transcribe_file and stream methods
• Includes comprehensive test coverage for VAD configuration scenarios

Reviewed Changes

Copilot reviewed 3 out of 4 changed files in this pull request and generated 1 comment.

File	Description
aiola/types.py	Defines VadConfig dataclass with threshold, min_speech_ms, min_silence_ms, and max_segment_ms fields
aiola/clients/stt/client.py	Adds vad_config parameter support to streaming and file transcription methods with validation
tests/unit/stt/test_stt_client.py	Comprehensive test coverage for VAD configuration in both sync and async operations

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[sonarqubecloud]

Quality Gate failed

Failed conditions
C Reliability Rating on New Code (required ≥ A)

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