- Clamp KDE candidates to parameter bounds before evaluating l(x)/g(x),
matching the univariate TPE behavior; without this, candidates scored
well at out-of-bounds locations but became suboptimal when clamped
- Sort HashMap iterations by ParamId before consuming the seeded RNG to
eliminate non-deterministic sampling caused by global ParamId counter
- Replace wall-clock timing assertion in async concurrency test with
atomic max-active counter to avoid CI flakiness
- Gate unused HashSet import behind cfg(feature = "async")
- Timing-based proof that trials run in parallel, not sequentially
- Atomic counter proof that multiple workers overlap simultaneously
- Panic propagation returns TaskError with panic message
- Partial failures with parallel path store only successful trials
- Add `.name()` builder method on all 5 parameter types for custom labels
- Add `CompletedTrial::get(¶m)` for typed parameter access
- Add `Display` impl on `ParamValue`
- Add prelude module at `optimizer::prelude::*`
- Shadow `_with_sampler` methods on `Study<f64>` so `optimize()` auto-uses
the configured sampler; deprecate `_with_sampler` variants
- Use runtime `Any` downcasting with `trial_factory` to avoid E0592
- Update all examples and tests to use the new API
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Manuel Raimann