feat(mistral): add native tool calling support #19180

Job	Run time
check-translations	44s
knip	51s
platform-unit-test (ubuntu-latest)	4m 31s
platform-unit-test (windows-latest)	10m 15s
compile	2m 16s
check-openrouter-api-key	2s
integration-test	3m 15s
	21m 54s

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