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/lookup/lookup.go

@@ -211,7 +211,10 @@ func (g *GeoJS) LookUp(ctx context.Context, client netip.Prefix) Answer {
 
 // LookUpWithoutWaiting is LookUp for a request that does not need the answer,
 // whatever Wait says: it returns the zero Answer at once when none is kept.
-func (g *GeoJS) LookUpWithoutWaiting(ctx context.Context, client netip.Prefix) Answer {
+func (g *GeoJS) LookUpWithoutWaiting(
+	ctx context.Context,
+	client netip.Prefix,
+) Answer {
 	answer, _ := g.answerOrWait(ctx, client, false)
 
 	return answer
@@ -429,14 +432,21 @@ func (g *GeoJS) keep(
 	}
 
 	if err == nil && leftOut > 0 {
-		err = fmt.Errorf("%w %d of %d addresses", errLeftOut, leftOut, len(clients))
+		err = fmt.Errorf(
+			"%w %d of %d addresses",
+			errLeftOut,
+			leftOut,
+			len(clients),
+		)
 	}
 
 	if err != nil {
 		g.metrics.GeoJSFailures.Inc()
 
-		g.retryDelay = min(max(retryDelayFactor*g.retryDelay, firstRetryDelay),
-			maxRetryDelay)
+		g.retryDelay = min(
+			max(retryDelayFactor*g.retryDelay, firstRetryDelay),
+			maxRetryDelay,
+		)
 		g.retryAt = now.Add(g.retryDelay)
 		g.asking = false
 
@@ -482,7 +492,12 @@ func (g *GeoJS) request(
 	ctx, cancel := context.WithTimeout(ctx, g.timeout)
 	defer cancel()
 
-	req, err := http.NewRequestWithContext(ctx, http.MethodGet, g.url, http.NoBody)
+	req, err := http.NewRequestWithContext(
+		ctx,
+		http.MethodGet,
+		g.url,
+		http.NoBody,
+	)
 	if err != nil {
 		return nil, fmt.Errorf("make the request to GeoJS: %w", err)
 	}
@@ -514,7 +529,8 @@ func (g *GeoJS) request(
 		CountryCode string `json:"country_code"`
 	}
 
-	err = json.NewDecoder(io.LimitReader(res.Body, maxResponseBytes)).Decode(&answers)
+	err = json.NewDecoder(io.LimitReader(res.Body, maxResponseBytes)).
+		Decode(&answers)
 	if err != nil {
 		return nil, fmt.Errorf("read GeoJS's answer: %w", err)
 	}