feat(federation): enrich RemoteActor with bio, banner, followers/following URLs

Bumps k-ap to 0.3.1 which adds bio, banner_url, followers_url,
following_url, and also_known_as to RemoteActor. These are populated
from fetched actor JSON at follow/ingest time so followers and following
listings no longer return null profile fields.

Adds migration 015 for the new remote_actors columns, updates all JOIN
queries in postgres-federation to select and return the new fields, and
maps them through k_ap_actor_to_domain.

Also fixes clippy: remove empty line after doc comment in port.rs.

Cargo.lock

@@ -2017,9 +2017,9 @@ dependencies = [
 
 [[package]]
 name = "k-ap"
-version = "0.3.0"
+version = "0.3.1"
 source = "sparse+https://git.gabrielkaszewski.dev/api/packages/GKaszewski/cargo/"
-checksum = "ce46ce331b0c85e5d9e1874056266d78d6a478f35ae188586fe488d840596346"
+checksum = "f73de37ac4feab6d7b78e73c60acbb07933c2be58dcbb12e8a34201f66e0480d"
 dependencies = [
  "activitypub_federation",
  "anyhow",
@@ -4570,7 +4570,7 @@ version = "0.1.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c2a7b1c03c876122aa43f3020e6c3c3ee5c05081c9a00739faf7503aeba10d22"
 dependencies = [
- "windows-sys 0.61.2",
+ "windows-sys 0.48.0",
 ]
 
 [[package]]