Update LND, Aperture, and Taproot Assets to revisions using the
btcd v2 modules, and update lndclient to v0.21.0-3. Migrate Loop
chain, transaction, and address types to their corresponding v2
packages.
The lndclient release includes the migration from:
https://github.com/lightninglabs/lndclient/pull/280
Taproot Assets is temporarily replaced with its btcd v2 revision
because the v0.8 release branch has not adopted the new modules.
This raises the minimum Go version to 1.26 and changes exported
address types.
This commit changes the time parsing function to use the time.Parse
function instead of the prior manual parsing. Only if the year is
far in the future, we replace it with the current year.
This commit fixes faulty timestamps caused by using unix milliseconds
as unix seconds on startup.
This commit also adds a test for the lightning-terminal issue that first
reported the bug.
