feat: unit extremal vector of the path observables on ℂ^d

[naype888-cloud]

this PR what's on this Extremal State,

first one C^d vector with coordenates on (-i)^j*sin((j+1)pi/(d+1)) normalizated to 1 this mean extremal state.

what this confirm, Sumatory of sin² = (d+1/2) then extremal state itś equal = to 1, this mean normalized extremal state.

this tinny comits are only pices from a biggest theorem suporting the calculus infrestructure to isntance the big one theorem.

[github-actions]

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