Fields like input_cost_per_token contain "token" as a key segment,
which incorrectly matched the sensitive patterns list and caused values
like 3.6e-06 to be displayed as "3.60*******e-06" in the model info UI.
Add a non_sensitive_overrides set (defaulting to {"cost"}) so that any
key containing "cost" as a segment is never masked, regardless of other
matching patterns.