This commit completes the evaluation of Text-to-Speech (TTS) options
as described in TICKET-013.
- Creates a detailed document comparing Piper,
Mimic 3, and Coqui TTS.
- Recommends Piper for initial development due to its performance and
low resource usage.
- Updates to reflect the decision and points to the
new evaluation document.
- Moves TICKET-013 to the 'done' column.
