Format Go with gofmt, then golines -m 77 (closes #215)

script/fmt now runs golines -m 77 after gofmt, repeating golines until
it changes nothing, since one pass can leave a line the next splits.
script/fmt-check fails when either would change a file.
script/bootstrap installs golines v0.13.0 with go install, pinned to
its commit, and checks the installed version with go version -m.

The tree is reformatted. The longer lines this makes are fixed by
hand: nolint directives moved onto their own line above the statement,
one string split, and 20 functions over funlen's 80 lines shortened or
split, RunWAF and limitPercentages among them.

Model: opus-5-5

internal/waf/lookup.go

@@ -105,5 +105,6 @@ func setLookupHeaders(header http.Header, asn, country string) {
 // canBePlaced reports whether a lookup can place addr: private, loopback
 // and link-local addresses have no AS number or country.
 func canBePlaced(addr netip.Addr) bool {
-	return !addr.IsPrivate() && !addr.IsLoopback() && !addr.IsLinkLocalUnicast()
+	return !addr.IsPrivate() && !addr.IsLoopback() &&
+		!addr.IsLinkLocalUnicast()
 }