v0.1.3

Fixed

• Deep-RCA whole-codebase debug audit: 21 confirmed bugs across 24 files (#49, #50). Highlights:
  • wrapper.py / strategies/stratified_ls.py: a DOF-correction truthiness bug understated reduced-chi2/quality_flag when the anti_degeneracy config section is absent but averaged/individual scaling is still active.
  • heterodyne_core.py: the CMA-ES warm-start auto-skip compared raw (non noise-normalized) SSR/dof against a threshold meant for noise-normalized reduced chi2, silently defeating the global escape on genuinely poor basins; added a missing weights/data shape guard in _fit_cmaes.
  • jax_backend.py: validate_backend()'s self-test used jax.grad on a matrix-output function, so gradient_support was always False even on a working JAX install; fixed to use jacobian, resolving the downstream always-ImportError fallout in model_mixins.py.
  • anti_degeneracy_controller.py: Layer 2 (HierarchicalOptimizer) was constructed mode-blind, reporting active even in averaged/constant mode where its hard-coded individual-mode layout is unusable; construction is now gated on the resolved per-angle mode.
  • hierarchical.py: outer-loop convergence was gated on absolute parameter change instead of the already-computed relative change, making convergence unreachable for parameters spanning 6+ orders of magnitude.
  • adaptive_regularization.py: the CV-safe-divide fix sanitized the numerator as well as the denominator, silently changing the near-zero-mean fallback value and killing the L3 regularization penalty exactly where it is needed; corrected to sanitize only the denominator (applied to all three CV sites).
  • strategies/sequential.py: combine_angle_results used a scalar per-angle weight for combined_params while combined_cov used an unmasked per-parameter inverse-variance weight, an internally inconsistent pairing; both now share the same masked/floored weight matrix.
  • data/performance_engine.py: MultiLevelCache disk writes were not serialized per key (unsynchronized "wb" opens race); fixed via atomic temp-file + os.replace.
  • data/memory_manager.py: cleanup_virtual_memory() deleted files by a shared filename-prefix scan instead of tracking self-created files, risking deletion of another live instance's mmap-backed file.
  • config.py: NLSQConfig.from_dict() crashed (instead of degrading to default) on an explicit YAML null for non-Optional numeric fields.
  • GUI: project_panel.py / result_presenter.py rendered a NaN parameter with the same "—" sentinel as "run has no such parameter," silently defeating the comparison-view diff marker; both now render "NaN" distinctly.
  • Smaller fixes: an unguarded end_frame KeyError in HeterodyneModel.from_config, an unbounded lscpu subprocess call (hang risk) in device/cpu.py, an uncommented empty except FileNotFoundError flagged by CodeQL, and unlogged fast_chi2_mode subsampling in out_of_core.py.
  • Verification: ruff clean, mypy clean (0 issues, 198 files), full suite green (2628 passed, +6 new regression tests, 0 failures).

Full Changelog: v0.1.2...v0.1.3