fix: apply go fix updates (any, range loop, slices, maps)

integrations/jikan/types.go

@@ -239,7 +239,7 @@ func (a Anime) DurationSeconds() float64 {
 	var currentValue int
 	hasValue := false
 
-	for _, token := range strings.Fields(strings.ToLower(a.Duration)) {
+	for token := range strings.FieldsSeq(strings.ToLower(a.Duration)) {
 		value, err := strconv.Atoi(token)
 		if err == nil {
 			currentValue = value

internal/anime/recommendations/engine.go

@@ -206,7 +206,7 @@ func (e engine) scoreRankedCandidates(
 	var g errgroup.Group
 	g.SetLimit(6)
 
-	for i := 0; i < limit; i++ {
+	for i := range limit {
 		item := ranked[i]
 		g.Go(func() error {
 			anime := item.anime

internal/anime/recommendations/recommendations_test.go

@@ -5,6 +5,7 @@ import (
 	"mal/integrations/jikan"
 	"mal/internal/db"
 	"mal/internal/domain"
+	"slices"
 	"testing"
 	"time"
 )
@@ -219,10 +220,8 @@ func animeIDs(animes []domain.Anime) []int {
 
 func hasGenreSearchQuery(queries []profileSearchQuery, genreID int) bool {
 	for _, query := range queries {
-		for _, id := range query.genreIDs {
-			if id == genreID {
-				return true
-			}
+		if slices.Contains(query.genreIDs, genreID) {
+			return true
 		}
 	}
 	return false

internal/db/command_palette.go

@@ -176,5 +176,5 @@ func commandPaletteLimit(limit int64) int64 {
 }
 
 type scanner interface {
-	Scan(dest ...interface{}) error
+	Scan(dest ...any) error
 }

internal/observability/db.go

@@ -8,24 +8,24 @@ import (
 
 type instrumentedDB struct {
 	db interface {
-		ExecContext(context.Context, string, ...interface{}) (sql.Result, error)
+		ExecContext(context.Context, string, ...any) (sql.Result, error)
 		PrepareContext(context.Context, string) (*sql.Stmt, error)
-		QueryContext(context.Context, string, ...interface{}) (*sql.Rows, error)
-		QueryRowContext(context.Context, string, ...interface{}) *sql.Row
+		QueryContext(context.Context, string, ...any) (*sql.Rows, error)
+		QueryRowContext(context.Context, string, ...any) *sql.Row
 	}
 	metrics *Metrics
 }
 
 func InstrumentDB(db interface {
-	ExecContext(context.Context, string, ...interface{}) (sql.Result, error)
+	ExecContext(context.Context, string, ...any) (sql.Result, error)
 	PrepareContext(context.Context, string) (*sql.Stmt, error)
-	QueryContext(context.Context, string, ...interface{}) (*sql.Rows, error)
-	QueryRowContext(context.Context, string, ...interface{}) *sql.Row
+	QueryContext(context.Context, string, ...any) (*sql.Rows, error)
+	QueryRowContext(context.Context, string, ...any) *sql.Row
 }, metrics *Metrics) *instrumentedDB {
 	return &instrumentedDB{db: db, metrics: metrics}
 }
 
-func (db *instrumentedDB) ExecContext(ctx context.Context, query string, args ...interface{}) (sql.Result, error) {
+func (db *instrumentedDB) ExecContext(ctx context.Context, query string, args ...any) (sql.Result, error) {
 	start := time.Now()
 	result, err := db.db.ExecContext(ctx, query, args...)
 	db.metrics.ObserveDBQuery("exec", time.Since(start), err)
@@ -36,14 +36,14 @@ func (db *instrumentedDB) PrepareContext(ctx context.Context, query string) (*sq
 	return db.db.PrepareContext(ctx, query)
 }
 
-func (db *instrumentedDB) QueryContext(ctx context.Context, query string, args ...interface{}) (*sql.Rows, error) {
+func (db *instrumentedDB) QueryContext(ctx context.Context, query string, args ...any) (*sql.Rows, error) {
 	start := time.Now()
 	rows, err := db.db.QueryContext(ctx, query, args...)
 	db.metrics.ObserveDBQuery("query", time.Since(start), err)
 	return rows, err
 }
 
-func (db *instrumentedDB) QueryRowContext(ctx context.Context, query string, args ...interface{}) *sql.Row {
+func (db *instrumentedDB) QueryRowContext(ctx context.Context, query string, args ...any) *sql.Row {
 	start := time.Now()
 	row := db.db.QueryRowContext(ctx, query, args...)
 	db.metrics.ObserveDBQuery("query_row", time.Since(start), nil)

internal/observability/log.go

@@ -6,6 +6,7 @@ import (
 	"errors"
 	"fmt"
 	"log"
+	"maps"
 	"net"
 	"os"
 	"path/filepath"
@@ -294,9 +295,7 @@ func cloneFields(fields map[string]any) map[string]any {
 	}
 
 	copyFields := make(map[string]any, len(fields))
-	for key, value := range fields {
-		copyFields[key] = value
-	}
+	maps.Copy(copyFields, fields)
 
 	return copyFields
 }