fix: reduce log noise during catalogue/book scrapes

Demote per-book and per-chapter-list-page Info logs to Debug — these
fire hundreds of times per catalogue run and drown out meaningful signals:
- orchestrator: RunBook starting (per book)
- metadata saved (per book)
- chapter list fetched (per book)
- scraping chapter list page N (per pagination page per book)

The 'book scrape finished' summary log (with scraped/skipped/errors
counters) remains at Info — it is the useful signal per book.

backend/internal/novelfire/scraper.go

@@ -241,7 +241,7 @@ func (s *Scraper) ScrapeChapterList(ctx context.Context, bookURL string, upTo in
 		}
 
 		pageURL := fmt.Sprintf("%s?page=%d", baseChapterURL, page)
-		s.log.Info("scraping chapter list", "page", page, "url", pageURL)
+		s.log.Debug("scraping chapter list", "page", page, "url", pageURL)
 
 		raw, err := retryGet(ctx, s.log, s.client, pageURL, 9, 6*time.Second)
 		if err != nil {

backend/internal/orchestrator/orchestrator.go

@@ -68,7 +68,7 @@ func New(cfg Config, novel scraper.NovelScraper, store bookstore.BookWriter, log
 // Returns a ScrapeResult with counters. The result's ErrorMessage is non-empty
 // if the run failed at the metadata or chapter-list level.
 func (o *Orchestrator) RunBook(ctx context.Context, task domain.ScrapeTask) domain.ScrapeResult {
-	o.log.Info("orchestrator: RunBook starting",
+	o.log.Debug("orchestrator: RunBook starting",
 		"task_id", task.ID,
 		"kind", task.Kind,
 		"url", task.TargetURL,
@@ -103,7 +103,7 @@ func (o *Orchestrator) RunBook(ctx context.Context, task domain.ScrapeTask) doma
 		}
 	}
 
-	o.log.Info("metadata saved", "slug", meta.Slug, "title", meta.Title)
+	o.log.Debug("metadata saved", "slug", meta.Slug, "title", meta.Title)
 
 	// ── Step 2: Chapter list ──────────────────────────────────────────────────
 	refs, err := o.novel.ScrapeChapterList(ctx, task.TargetURL, task.ToChapter)
@@ -114,7 +114,7 @@ func (o *Orchestrator) RunBook(ctx context.Context, task domain.ScrapeTask) doma
 		return result
 	}
 
-	o.log.Info("chapter list fetched", "slug", meta.Slug, "chapters", len(refs))
+	o.log.Debug("chapter list fetched", "slug", meta.Slug, "chapters", len(refs))
 
 	// Persist chapter refs (without text) so the index exists early.
 	if wErr := o.store.WriteChapterRefs(ctx, meta.Slug, refs); wErr != nil {

backend/internal/runner/runner.go

@@ -505,7 +505,11 @@ func (r *Runner) runScrapeTask(ctx context.Context, task domain.ScrapeTask) {
 		log.Warn("runner: unknown task kind")
 	}
 
-	if err := r.deps.Consumer.FinishScrapeTask(ctx, task.ID, result); err != nil {
+	// Use a fresh context for the final write so a cancelled task context doesn't
+	// prevent the result counters from being persisted to PocketBase.
+	finishCtx, finishCancel := context.WithTimeout(context.Background(), 15*time.Second)
+	defer finishCancel()
+	if err := r.deps.Consumer.FinishScrapeTask(finishCtx, task.ID, result); err != nil {
 		log.Error("runner: FinishScrapeTask failed", "err", err)
 	}
 
@@ -551,7 +555,7 @@ func (r *Runner) runCatalogueTask(ctx context.Context, task domain.ScrapeTask, o
 			TargetURL: entry.URL,
 		}
 		bookResult := o.RunBook(ctx, bookTask)
-		result.BooksFound += bookResult.BooksFound + 1
+		result.BooksFound += bookResult.BooksFound
 		result.ChaptersScraped += bookResult.ChaptersScraped
 		result.ChaptersSkipped += bookResult.ChaptersSkipped
 		result.Errors += bookResult.Errors