Optimize hot path performance: cache config lookups and streamline list operations#347

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Copilot wants to merge 8 commits intomasterfrom

copilot/improve-inefficient-code

Commits on Dec 17, 2025

Initial plan
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Optimize performance: cache config lookups and fix list operations

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Remove redundant lookup_url/4 function after optimization

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Use lists:concat instead of lists:flatten for correct semantics

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Address review feedback: improve comment and error handling specificity

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Optimize get_routes to use single list concatenation operation

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Fix stacktrace pattern matching to use arity instead of arg list

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Polish: improve code formatting and add explanatory comment

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