feat: integrate ASR for input and output management for corpus through cli

Description

Add Automatic Speech Recognition (ASR) support to the CLI so users can transcribe audio files into text.

Features

• Add ASR CLI command
• Support audio formats: wav, mp3, m4a
• Convert speech to text using an ASR provider
• Handle invalid files/errors gracefully

Example

corpus-client ASR sample.wav

Acceptance Criteria

• User can transcribe an audio file from CLI
• Unsupported formats show proper error messages
• Transcription output is displayed correctly
• Code is modular for future ASR providers
• Tests and basic documentation are added