Add AisleGopher integration for data extraction

Introduced a new package and command for extracting data from aislegopher.com, including URL parsing and item retrieval. Updated dependencies in go.mod to support the new functionality. Additionally, refined import structure in the DuckDuckGo integration.

sites/aislegopher/cmd/aislegopher/aislegopher.go

@@ -0,0 +1,77 @@
+package main
+
+import (
+	"context"
+	"fmt"
+	"io"
+	"net/url"
+	"os"
+
+	"gitea.stevedudenhoeffer.com/steve/go-extractor/cmd/browser/pkg/browser"
+	"gitea.stevedudenhoeffer.com/steve/go-extractor/sites/aislegopher"
+	"github.com/urfave/cli/v3"
+)
+
+type AisleGopherFlags []cli.Flag
+
+var Flags = AisleGopherFlags{}
+
+func (f AisleGopherFlags) ToConfig(_ *cli.Command) aislegopher.Config {
+	res := aislegopher.DefaultConfig
+
+	return res
+}
+
+func deferClose(cl io.Closer) {
+	if cl != nil {
+		_ = cl.Close()
+	}
+}
+func main() {
+	var flags []cli.Flag
+	flags = append(flags, browser.Flags...)
+	flags = append(flags, Flags...)
+
+	cli := &cli.Command{
+		Name:  "aislegopher",
+		Usage: "AisleGopher is a tool for extracting data from aislegopher.com",
+		Flags: flags,
+		Action: func(ctx context.Context, c *cli.Command) error {
+			cfg := Flags.ToConfig(c)
+
+			b, err := browser.FromCommand(ctx, c)
+			if err != nil {
+				return fmt.Errorf("failed to create browser: %w", err)
+			}
+
+			defer deferClose(b)
+
+			arg := c.Args().First()
+
+			if arg == "" {
+				return fmt.Errorf("url is required")
+			}
+
+			u, err := url.Parse(arg)
+
+			if err != nil {
+				return fmt.Errorf("failed to parse url: %w", err)
+			}
+
+			data, err := cfg.GetItemFromURL(ctx, b, u)
+
+			if err != nil {
+				return fmt.Errorf("failed to get item from url: %w", err)
+			}
+
+			fmt.Printf("Item: %+v\n", data)
+			return nil
+		},
+	}
+
+	err := cli.Run(context.Background(), os.Args)
+
+	if err != nil {
+		panic(err)
+	}
+}