Validate the bid rate before returning an accepted asset sell quote.
This prevents malformed rates from reaching downstream quote arithmetic,
where nil or non-positive values can panic. Cover valid and malformed
responses with table-driven tests.
Validate the rate pointer and decimal coefficient before converting
asset units. Return errors for nil, malformed, non-positive, and
oversized-scale rates instead of allowing nil dereferences or
division-by-zero panics. Add regression tests for each case.
Restrict the asset-name cache mutex to map access so a slow
QueryAssetStats call cannot block cached readers. Use an RWMutex for
independent cache reads and add a concurrent regression test.
Convert the configured duration once during client creation. Round
positive fractional durations up to the whole seconds accepted by tapd.
Reject zero, negative, and overflowing values, and cover the conversion
boundaries with unit tests.
Build the default tapd admin macaroon path from the configured Bitcoin
network while preserving explicit path overrides. Add regression tests for
tapd credential loading and network-specific path selection.
