This commit deprecates/replaces the old field `sat_per_byte` with
`sat_per_vbyte`. While the old field suggests sat per byte, it’s
actually using sat per virtual byte. We use the Hidden param to hide all
the deprecated flags. These flags won't show up in help menu onwards,
while stay valid that can be passed from cli. Thus bash scripts
referencing these fields won't be broken.
Fixes#5080.
The N_TTY_BUF_SIZE kernel parameter dictates how many characters can be
pasted into a terminal window. This cannot be circumvented by reading
the input in a different manner.
To avoid the problem fully, we instead allso allow the user to type in a
path to a text file that is read if it exists. That way the PSBT can be
as long as needed.
This commit adds a shutdown logger which will send a request for
shutdown on critical errors. It uses the signal package to request safe
shutdown of the daemon. Since we init our logs in config validation,
we add a started channel to the signal package to prevent the case where
we have a critical log after the ShutdownLogger has started but before
the daemon has started listening for intercepts. In this case, we just
ignore the shutdown request.
