v0.3.0

[0.3.0] - 2026-06-15: tolerance overloads on the value assertions

Minor release. Adds absolute-tolerance overloads to the value assertions, closing the asymmetry where the histogram aggregates (HasSampleSum / HasSampleAverage) accepted a tolerance but the value assertions compared doubles exactly. Purely additive; the 0.2.0 ApiCompat baseline is preserved.

Added

• HasLastValue(double expected, double tolerance) on an InstrumentCapture asserts the most recent value within an absolute tolerance, the tolerant counterpart of HasLastValue(double) for gauges fed computed doubles (where 0.1 + 0.2 != 0.3 exact comparison flakes).
• HasSamples(IReadOnlyList<double> expected, double tolerance) and HasSamplesInAnyOrder(IReadOnlyList<double> expected, double tolerance) on a MeasurementSet assert the samples within an absolute per-sample tolerance, in order and order-independent respectively. The framework-agnostic core gains the matching MeasurementSet.SamplesEqual(expected, tolerance) / SamplesEquivalentTo(expected, tolerance) comparison primitives. Every tolerance overload rejects a non-finite or negative tolerance with ArgumentOutOfRangeException, so an invalid tolerance fails fast instead of silently matching everything (NaN) or nothing (negative).

Documentation

• MeasurementSet.Total now documents that the sum is rounded to a long with banker's rounding (round half to even), so a Counter<double> with a fractional total is evaluated as an integer. For an exact fractional total, compare Sum directly or use HasSampleSum(expected, tolerance).