fix(start-server-core): fall back to GET handler for HEAD requests (RFC 9110 §9.3.2)#7325

Zelys-DFKH wants to merge 4 commits intoTanStack:mainTanStack/router:mainfrom

Zelys-DFKH:fix/head-request-fallback-to-get-handlerZelys-DFKH/router:fix/head-request-fallback-to-get-handlerCopy head branch name to clipboard