feat: archive preservation + clean_failed_subs toggle

Author: Delta-Kronecker

data/settings.json

@@ -1,6 +1,7 @@
 {
   "validation": {
 
+    "clean_failed_subs": false,
     "num_workers": 1000,
     "global_timeout_sec": 20000,
     "xray_start_timeout_ms": 8000,

src/main.go

@@ -69,7 +69,7 @@ func main() {
 		fmt.Printf(" Loaded %d sources from sub.txt\n", len(subURLs))
 		var failedURLs []string
 		allConfigs, failedLinks, failedURLs = fetchAllFromSubs(subURLs)
-		if len(failedURLs) > 0 {
+		if len(failedURLs) > 0 && cfg.Validation.CleanFailedSubs {
 			cleanSubFile("data/sub.txt", failedURLs)
 		}
 	} else {

src/types.go

@@ -27,7 +27,8 @@ type GeoSettings struct {
 }
 
 type ValidationSettings struct {
-	NumWorkers             int      `json:"num_workers"`
+	CleanFailedSubs         bool     `json:"clean_failed_subs"`
+	NumWorkers              int      `json:"num_workers"`
 	GlobalTimeoutSec       float64  `json:"global_timeout_sec"`
 	XrayStartTimeoutMs    int      `json:"xray_start_timeout_ms"`
 	XrayStartIntervalMs   int      `json:"xray_start_interval_ms"`

src/writer.go

@@ -84,7 +84,16 @@ func injectClashProxies(baseContent string, proxyEntries []string, proxyNames []
 // ── prepareOutputDirs ─────────────────────────────────────────────────────────
 
 func prepareOutputDirs() error {
+	archiveDir := filepath.Join("config", "archive")
+	tmpArchive := filepath.Join("config", ".archive_tmp")
+	if _, err := os.Stat(archiveDir); err == nil {
+		os.Rename(archiveDir, tmpArchive)
+	}
 	os.RemoveAll("config")
+	if _, err := os.Stat(tmpArchive); err == nil {
+		os.MkdirAll(archiveDir, 0755)
+		os.Rename(tmpArchive, archiveDir)
+	}
 	dirs := []string{
 		"config",
 		cfg.Output.ProtocolsDir,