fix: anthropic cache improvements #781
Merged
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SDK's
providerOptions.anthropic.cacheControlisn't translated to rawcache_controlfor tools/content parts. Fixed via HTTP-level fetch wrapper injectingcache_controlon last tool and second-to-last message.Also: extended cache detection to gateway providers (
mux-gateway:anthropic/...), fixed array content handling, tools now recreated viacreateTool()(SDK requires providerOptions at creation).