Three bugs the kernel suite never caught, because CI only compiles it.
A peer's addresses were comma-joined into one argument, but the library
inits that argument as a single multiaddress, so StoreQuery and PingPeer
failed against any peer advertising more than one address.
StoreQueryResponse could decode neither the Opt[T] wrapper objects the
library renders results.Opt as, nor the integer arrays it renders
seq[byte] as, so every store reply failed to unmarshal. Both shapes now
decode, and the bare value still does.
A context without a deadline sent timeoutMs=0, which chronos' withTimeout
expires on immediately rather than treating as unbounded. StoreQuery with
context.Background() could never have succeeded.
