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/rproxy/rproxy.go

@@ -78,7 +78,10 @@ type Server struct {
 // on.
 func New(params Params) *Server {
 	backend := params.Config.WAFBackend
-	errorLog := slog.NewLogLogger(params.ProcessLog.Handler(), slog.LevelWarn)
+	errorLog := slog.NewLogLogger(
+		params.ProcessLog.Handler(),
+		slog.LevelWarn,
+	)
 	h := &handler{
 		config:       params.Config,
 		requestLog:   params.RequestLog,