Use json v2

internal/llm/client_models.go

@@ -2,7 +2,7 @@ package llm
 
 import (
 	"context"
-	"encoding/json"
+	"encoding/json/v2"
 	"fmt"
 	"io"
 	"log/slog"
@@ -74,7 +74,7 @@ func (c *Client) ListModels(ctx context.Context) ([]Model, error) {
 	}
 
 	var body ModelsResponse
-	if err := json.NewDecoder(res.Body).Decode(&body); err != nil {
+	if err := json.UnmarshalRead(res.Body, &body); err != nil {
 		return nil, fmt.Errorf(
 			"list models: decode response: %w", err,
 		)