feat: implement entry variant tagging, backend action handlers, batch variant loading, and rule application API.

cmd/server/main.go

@@ -16,6 +16,7 @@ import (
 	"git.pengzhan.dev/haopengzhan/rsspipe/internal/db"
 	"git.pengzhan.dev/haopengzhan/rsspipe/internal/events"
 	"git.pengzhan.dev/haopengzhan/rsspipe/internal/logger"
+	"git.pengzhan.dev/haopengzhan/rsspipe/internal/models"
 	"git.pengzhan.dev/haopengzhan/rsspipe/internal/rules"
 	"git.pengzhan.dev/haopengzhan/rsspipe/internal/worker"
 	"go.uber.org/zap"
@@ -50,9 +51,50 @@ func main() {
 	bus := events.NewEventBus()
 	pool := worker.NewPool(database, bus, 5, 100)
 
-	// Register Scraper Action
+	// Register Core Action Handlers
 	scraper := readability.NewScraper(15 * time.Second)
 	pool.RegisterHandler("readability_scrape", scraper.Handler())
+
+	pool.RegisterHandler("set_variant", func(ctx context.Context, entry models.FeedEntry, params map[string]interface{}) (*worker.ActionResult, error) {
+		key, _ := params["variant_key"].(string)
+		if key == "" {
+			key, _ = params["key"].(string)
+		}
+		if key == "" {
+			return nil, nil
+		}
+		val, _ := params["value"].(string)
+		contentType, _ := params["content_type"].(string)
+		if contentType == "" {
+			contentType = "text"
+		}
+		variant := models.EntryVariant{
+			EntryID:     entry.ID,
+			VariantKey:  key,
+			ContentType: contentType,
+			TextValue:   val,
+			CreatedAt:   time.Now(),
+			UpdatedAt:   time.Now(),
+		}
+		return &worker.ActionResult{
+			ResultVariant: &variant,
+		}, nil
+	})
+
+	pool.RegisterHandler("mark_read", func(ctx context.Context, entry models.FeedEntry, params map[string]interface{}) (*worker.ActionResult, error) {
+		trueVal := true
+		return &worker.ActionResult{
+			MarkRead: &trueVal,
+		}, nil
+	})
+
+	pool.RegisterHandler("mark_starred", func(ctx context.Context, entry models.FeedEntry, params map[string]interface{}) (*worker.ActionResult, error) {
+		trueVal := true
+		return &worker.ActionResult{
+			MarkStarred: &trueVal,
+		}, nil
+	})
+
 	pool.Start(ctx)
 
 	// 4. Initialize Rules Engine