Remove Kokoro TTS

Clean uninstall of the Kokoro TTS engine. Preserves model cache by default.

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What Gets Removed

• Python venv at ~/.local/share/kokoro/.venv
• Scripts: tts_generate.py, kokoro_common.py
• Metadata: version.json
• Directory ~/.local/share/kokoro/ (if empty after cleanup)

What Gets Preserved

• Model cache at ~/.cache/huggingface/hub/models--mlx-community--Kokoro-82M-bf16/
• Launchd plist (if server was configured)

Workflow