* fix: validate websocket trigger urls and gate trigger test route
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
* docs: clarify validate_websocket_url_for_ssrf call sites
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>