handle faulty nip19 codes better.

do not allow one bad relay to drag us forever when batch fetching rep…

…laceables.

move signer to its own independent package.

always use a store, falling back to slicestore. use a background cont…

…ext on dataloader.

it looks like some dataloading calls were failing because they used the first context passed in, which was a terrible idea.

add a short-term cache for outbox query results.

simplify, reduce number of relays and make replaceable loader more co…

…ncurrent and faster.

outbox hints fixes, track all events (we must use sys.Pool always), p…

…revent virtual relays from being tracked.

go.mod shenanigans.

problem: System{} not being exported was causing hassle.

add search users.