refactor: split modules and harden scraping workflows

internal/service/scanner_post_scan.go

@@ -0,0 +1,25 @@
+package service
+
+import (
+	"context"
+	"time"
+
+	"go.uber.org/zap"
+)
+
+func (s *ScannerService) invalidateMediaCache(ctx context.Context) {
+	if s != nil && s.cache != nil {
+		s.cache.DeletePrefix(ctx, "media:")
+		s.cache.DeletePrefix(ctx, "stats:")
+	}
+}
+
+func (s *ScannerService) startAutoScrape(ctx context.Context, libraryID string) {
+	scrapeCtx, cancel := context.WithTimeout(context.WithoutCancel(ctx), 30*time.Minute)
+	go func() {
+		defer cancel()
+		if _, err := s.scraper.EnrichLibraryDetailedWithOptions(scrapeCtx, libraryID, skipEpisodeArtworkOptions(false)); err != nil {
+			s.log.Warn("scraper enrich failed", zap.Error(err))
+		}
+	}()
+}