Refresh the roadmap

[DiogoRibeiro7]

The roadmap still described 0.2 as future work and listed the performance
items that shipped this week as unstarted.

• 0.1 and 0.2 become released entries, with their Zenodo DOIs and what
  actually shipped in each. The 0.2 list was written before the work and
  did not match it — multi-value QCA, chart inspection, robustness sweeps
  and the case typology were absent from it.
• The 0.3 performance section is done, so it becomes an Unreleased entry.
• What remains is reordered by dependency rather than by version number:
  simulation lands before visualisation, because a plot of an unvalidated
  result is a confident-looking wrong answer.
• Items that were quietly dropped are named rather than deleted: XY plots,
  multi-outcome models and optional R-compatible calibration snapping are
  still open, the last currently existing only as a divergence pinned by
  tests.

Docs build --strict.

---

Summary by cubic

Refreshes the roadmap to reflect what actually shipped and what’s next. Marks 0.1 and 0.2 as released with DOIs, moves performance work to Unreleased, and reorders upcoming items by dependency.

• Changes
  • Mark 0.1 and 0.2 as released with DOIs; update shipped items (intermediate solutions matching R, multi-value QCA, robustness sweeps, chart inspection, case typology, enhanced necessity analysis, extended QCA parity).
  • Add Unreleased performance work (faster exact minimisation via bitmask cube, benchmark harness, early complexity warning).
  • Reorder Next: simulation before visualisation; include provenance and scheduled cross-language validation.
  • Keep open items visible: XY plots, multi-outcome models, optional R-compatible calibration snapping.

^{Written for commit 7caedd5. Summary will update on new commits.}

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.

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