Remove send-diagnostics.ts entirely. Claude writes the JSON, shows
it to the user, and sends via curl. Opt-out is permanent: Claude
replaces diagnostics.md contents and removes the section from SKILL.md.
No dependencies, no state files, no .nanoclaw/ directory.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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