Trim AlgorithmsInterfaceExtensions to a minimal NestedAlgorithm#115

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mtfishman merged 16 commits into

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mf/nested-algorithm

May 20, 2026

Commits on May 19, 2026

Refactor `NestedAlgorithm` hooks: `initialize_subsolve` + `finalize_substate!`

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Strip AIE down to minimal NestedAlgorithm + abstract scaffolding

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Drop AIE `Problem` / `Algorithm` / `State` / `DefaultState` scaffolding

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Refactor BP into three problem/algorithm/state triples

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Reorder BP source top-to-bottom

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Move StopWhenConverged + iterate_diff verb into AIE

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Move `edge` field from `SimpleMessageUpdateAlgorithm` to `MessageUpdateProblem`

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Move BP edge ordering from `BeliefPropagationProblem` to `BeliefPropagationSweepAlgorithm`

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Store edges on `BeliefPropagationAlgorithm`, not the sweep algorithm

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Index per-edge BP algorithms by edge; drop `AbstractVector` constraints

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Rename `beliefpropagationproblem.jl` to `beliefpropagation.jl`

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