refactor: standardize article header layout in UI and increase worker pool capacity

cmd/server/main.go

@@ -5,6 +5,7 @@ import (
 	"net/http"
 	"os"
 	"os/signal"
+	"strings"
 	"syscall"
 	"time"
 
@@ -49,7 +50,7 @@ func main() {
 
 	// 3. Initialize EventBus, WorkerPool, and Action Handlers
 	bus := events.NewEventBus()
-	pool := worker.NewPool(database, bus, 5, 100)
+	pool := worker.NewPool(database, bus, 5, 1000)
 
 	// Register Core Action Handlers
 	scraper := readability.NewScraper(15 * time.Second)
@@ -68,6 +69,26 @@ func main() {
 		if contentType == "" {
 			contentType = "text"
 		}
+
+		// If key == "tags", merge with existing tags so multiple rules append tags
+		if key == "tags" {
+			existingVariant, err := database.GetVariant(entry.ID, "tags")
+			if err == nil && existingVariant != nil && existingVariant.TextValue != "" {
+				existingTags := strings.Split(existingVariant.TextValue, ",")
+				newTags := strings.Split(val, ",")
+				tagSet := make(map[string]bool)
+				var merged []string
+				for _, t := range append(existingTags, newTags...) {
+					trimmed := strings.TrimSpace(t)
+					if trimmed != "" && !tagSet[strings.ToLower(trimmed)] {
+						tagSet[strings.ToLower(trimmed)] = true
+						merged = append(merged, trimmed)
+					}
+				}
+				val = strings.Join(merged, ", ")
+			}
+		}
+
 		variant := models.EntryVariant{
 			EntryID:     entry.ID,
 			VariantKey:  key,