Additions for #327 - Enable `DesignCosts` in `WeightedCost` #1701

Job	Run time
style	14s
Integration tests (ubuntu-latest / Python 3.12)	9m 49s
Coverage tests (macos-14 / Python 3.12)	5m 26s
Integration tests (windows-latest / Python 3.12)	10m 42s
Test examples (ubuntu-latest / Python 3.12)	17m 12s
Unit tests (ubuntu-latest / Python 3.9)	1m 13s
Integration tests (macos-13 / Python 3.12)	7m 16s
Test examples (windows-latest / Python 3.12)	17m 3s
Unit tests (ubuntu-latest / Python 3.10)	1m 9s
Test examples (macos-13 / Python 3.12)	18m 11s
Integration tests (macos-14 / Python 3.12)	3m 51s
Unit tests (ubuntu-latest / Python 3.11)	1m 8s
Test examples (macos-14 / Python 3.12)	8m 0s
Unit tests (ubuntu-latest / Python 3.12)	1m 19s
Unit tests (windows-latest / Python 3.9)	2m 52s
Unit tests (windows-latest / Python 3.10)	2m 43s
Unit tests (windows-latest / Python 3.11)	3m 1s
Unit tests (windows-latest / Python 3.12)	2m 2s
Unit tests (macos-13 / Python 3.9)	1m 51s
Unit tests (macos-13 / Python 3.10)	1m 32s
Unit tests (macos-13 / Python 3.11)	2m 9s
Unit tests (macos-13 / Python 3.12)	2m 13s
Unit tests (macos-14 / Python 3.9)	1m 2s
Unit tests (macos-14 / Python 3.10)	51s
Unit tests (macos-14 / Python 3.11)	52s
	2h 3m 41s

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