Fix Python/C++ interop bugs exposed by PR #213 tests#315

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copilot/fix-complaint-from-pr-313

Commits on Feb 12, 2026

Temporary layer switch job -> event
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Initial plan

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Fix real bugs from PR 313 without incorrect refcount changes

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Add corrected python-refcounting.md documenting wlav's one-to-one model

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Fix declared_transform exception safety to prevent SEGFAULT on cache reuse

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Extract Python error state in VECTOR_CONVERTER before throwing

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Apply clang-format fixes

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Add defensive null checks to lifeline_transform

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Improve error messages in lifeline_transform null checks

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Protect borrowed m_view references with INCREF/DECREF in py_callback

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Remove Py_TPFLAGS_HAVE_GC from PhlexLifeline

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Investigation: no code changes - diagnostic findings only

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Remove accidentally committed build directories, add to .gitignore

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