refactor(#8): update LoadMMKVOrDefault function to use MMKVLoaderOptions and implement platform-specific loading for Windows

cmd/um/main.go

@@ -24,6 +24,7 @@ import (
 	_ "git.um-react.app/um/cli/algo/xiami"
 	_ "git.um-react.app/um/cli/algo/ximalaya"
 	"git.um-react.app/um/cli/internal/ffmpeg"
+	"git.um-react.app/um/cli/internal/mmkv"
 	"git.um-react.app/um/cli/internal/sniff"
 	"git.um-react.app/um/cli/internal/utils"
 	"github.com/fsnotify/fsnotify"
@@ -51,6 +52,7 @@ func main() {
 			&cli.StringFlag{Name: "output", Aliases: []string{"o"}, Usage: "path to output dir", Required: false},
 			&cli.StringFlag{Name: "qmc-mmkv", Aliases: []string{"db"}, Usage: "path to QQMusic mmkv path", Required: false},
 			&cli.StringFlag{Name: "qmc-mmkv-key", Aliases: []string{"key"}, Usage: "QQMusic mmkv password (16 ascii chars)", Required: false},
+			&cli.StringFlag{Name: "qmpc-mmkv-cli-exe", Usage: "path to QMPC MMKV Cli by LSR (v0.1.1+, auto-fetch QMC keys; Windows only)", Required: false, Value: "qmpc-mmkv-cli.exe"},
 			&cli.StringFlag{Name: "kgg-db", Usage: "path to kgg db (win32 kugou v11)", Required: false},
 			&cli.BoolFlag{Name: "remove-source", Aliases: []string{"rs"}, Usage: "remove source file", Required: false, Value: false},
 			&cli.BoolFlag{Name: "skip-noop", Aliases: []string{"n"}, Usage: "skip noop decoder", Required: false, Value: true},
@@ -176,11 +178,14 @@ func appMain(c *cli.Context) (err error) {
 		return errors.New("output should be a writable directory")
 	}
 
-	// QMC: Load keys
-	qmcKeys, err := qmc.LoadMMKVOrDefault(c.String("qmc-mmkv"), c.String("qmc-mmkv-key"), logger)
+	// QMC: Load platform keys, then merge user mmkv (--qmc-mmkv) on all platforms.
+	qmcKeys, err := qmc.LoadMMKVOrDefault(qmc.MMKVLoaderOptions{
+		CliExe: c.String("qmpc-mmkv-cli-exe"),
+	}, logger)
 	if err != nil {
 		return err
 	}
+	qmcKeys = mmkv.Merge(qmcKeys, qmc.LoadUserMMKV(c.String("qmc-mmkv"), c.String("qmc-mmkv-key"), logger))
 
 	kggDbPath := c.String("kgg-db")
 	if kggDbPath == "" {