feat: rule based auto order

[Senna46]

Auto order

If an automatic order is enabled, the automatic order is placed based on the following formula

$$ h_{t} = h_{t}-\bar{h_{t}} = h_{t}-\hat{S_{m}}(1-\frac{t}{T}) $$

$$ p_{t} = p_{t-1} (1-\alpha b_t / {\frac{\hat{S_{m}}}{T}}) $$

$$ \hat{S_{m}} = r S_{m-1} $$

$T$：Total number of days in the month (28, 30 or 31)
$S_{m}$：Total amount consumed this month 𝑚
$\hat{S_{m}}$：Estimated total amount consumed this month 𝑚
$h_t$：Token balance at day 𝑡
$\bar{h}_t = \hat{S} (1-\frac{t}{T})$：Approximate tokens balance at day 𝑡
$b_t$：Desired amount to buy/sell at day 𝑡
$r$：Seasonal adjustment rate
$\alpha > 0$：Learning rate