Augment Kokoro TTS

Upgrade MLX-Audio dependencies, re-download the model, and update bundled scripts.

Self-Evolving Skill: This skill improves through use. If instructions are wrong, parameters drifted, or a workaround was needed — fix this file immediately, don't defer. Only update for real, reproducible issues.

Workflow

Step 1: Pre-upgrade health check

ROOT="$(cc-plugin-root kokoro-tts)"
bash "$ROOT/scripts/kokoro-install.sh" --health
cat ~/.local/share/kokoro/version.json

Step 2: Execute upgrade