feat(routing): Bind improvement search limits - #2
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References ENG-1408.
Exposes OR-Tools
improvement_limit_parametersonRoutingSearchParametersas a Ruby hash with the native coefficient and solution-distance fields. This keeps stopping inside OR-Tools and preserves the existing no-GVL solve paths.The behavioral regression runs the same deterministic search with and without the native limit: the baseline reaches its 500-solution ceiling, while the limited search stops earlier and returns a traced best objective matching its assignment.
Verified with the full 108-test suite on Ruby 4.0.5, plus focused routing and solution-trace tests.
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