Read [warnings].trusted_cache_endpoints as a set of hostnames.
Entries declare that an alternate endpoint forwards cache-affecting request
fields (cache_control, prompt_cache_key, prompt_cache_retention) and
honors the upstream provider's documented retention.
Trust is matched on the exact host: trusting example.com does not trust
gw.example.com. Each host a request may actually reach must be listed.
Malformed content never raises: an unusable entry is dropped and a value that is not a list is ignored wholesale. Because a dropped entry silently leaves the warning disabled -- the opposite of what the user edited the file to achieve -- the offending entry is logged by value and a non-list value by type. Each distinct rejection is logged once per process.
Parsed user config.toml mapping. When omitted, the user
configuration is loaded from disk and resolved with managed
configuration, which takes precedence.
