[Jammy2211]

BFGS/LBFGS saved scipy OptimizeResult objects but resumed using the nonexistent x0 key. Restore x, persist cumulative total_iterations separately from scipy's per-chunk nit, and return the loaded result when its budget is already exhausted. Preserve the fresh-run fallback for NullPaths and restore saved optimization history when enabled.

Closes #1724.

API Changes

No public signature or output-identifier changes. Existing samples_info total_iterations now reports the cumulative count across chunks. Old checkpoints without that field fall back to their saved nit; the historical cumulative count cannot be reconstructed from those older files. Persistence remains dill, without a new resume_state format.

Validation

Full library suite: 3919 passed, 1 skipped, 1 xfailed (Python 3.12.14). Broader search/conformance/clipper tests: 201 passed. Six new regressions pass for real interrupted BFGS/LBFGS fits, legacy checkpoint counts, and exhausted budgets; all six fail on unchanged main. Author diff review passed. Real scipy fits resume at the saved point and match uninterrupted runs.

No downstream API migration. Actual search.fit interrupt/resume and conformance tests cover both no-output and directory-backed searches; the six-workspace smoke matrix was not run. Required CI remains pending at PR creation.

Heart and authorization

User authorized "Find 4 grouped tasks and do them", then "Yes I authorise" after the RED gate was disclosed. Development PR only; no merge or release. Fresh published vitals: organism RED, PyAutoFit scope GREEN; local readiness STALE (fresh checkout has no release evidence). This does not repair or clear the organism's RED.

Disclosed RED reasons

• install verification FAILED (testpypi; checks F)
• release validation FAILED (stage integrate)
• PyAutoHeart/workflows/Release Integrate: failure
• manifest_drift/checks/workspace checkouts (manifest ↔ disk): red
• Release readiness: release validation FAILED (stage integrate)
• Release readiness: install verification FAILED (testpypi; checks F)
• PyAutoArray/test_autoarray/inversion/inversion/interferometer/test_interferometer.py::test__interferometer_sparse_operator__mapped_reconstructed_data_dict_matc…
• Unit-test timing: 1 test regressions (>3× baseline), 11 slow (>1.5×)
• Release validation: NOT release_ready — v2026.10.25.1.dev83701 profile=release (2026-10-25T07:21:05+00:00)
• validation_report/stages/integrate: fail
• verify_install FAILED: verify_install FAILED
• F: colab gate: finufft (declared by autoarray, absent on Colab, imported)
• Install verification: FAILED (testpypi; F) (2026-10-25T07:42:48.134987+00:00)
• verify_install: red
• PyAutoBrain: red
• PyAutoLens: red
• autolens_profiling: red
• Worktree drift: 1 orphan / 0 missing / 3 dirty