Implement minimal_perfect_hash policy using PtHash algorithm#58

Draft

Copilot wants to merge 15 commits intodevelopfrom

copilot/add-minimal-perfect-hash-policy

Commits on Dec 18, 2025

Initial plan
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Add minimal_perfect_hash policy and test suite

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Fix M calculation for minimal perfect hash to ensure enough bits

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Add comments clarifying minimal perfect hash property

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Implement proper PtHash algorithm with displacement tables

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Address code review feedback: add named constants and fix trace checking

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Optimize positions vector allocation with reserve()

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Allow up to 10% bucket waste in minimal_perfect_hash

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Fix table size calculation and documentation for 10% waste

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Improve code readability with named constants for waste factor

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Remove trailing spaces

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Remove duplicate uintptr definitions (lines 23-33)

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Move uintptr definitions to separate namespace declaration

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Use anonymous namespace for uintptr definitions

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Fix potential overflow in group hash calculation by using uint32_t multiplier

Copilot
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jll63
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