fix: human readable timestamps

opal-task/cmd/sync.go

@@ -5,6 +5,7 @@ import (
 	"fmt"
 	"os"
 	"strings"
+	"time"
 
 	"git.jnss.me/joakim/opal/internal/engine"
 	"git.jnss.me/joakim/opal/internal/sync"
@@ -471,5 +472,32 @@ func getLocalChanges(since int64) ([]*engine.Task, error) {
 }
 
 func formatTimestamp(ts int64) string {
-	return fmt.Sprintf("%d", ts) // Simple for now, can enhance later
+	t := time.Unix(ts, 0)
+	now := time.Now()
+	diff := now.Sub(t)
+
+	switch {
+	case diff < time.Minute:
+		return "just now"
+	case diff < time.Hour:
+		m := int(diff.Minutes())
+		if m == 1 {
+			return "1 minute ago"
+		}
+		return fmt.Sprintf("%d minutes ago", m)
+	case diff < 24*time.Hour:
+		h := int(diff.Hours())
+		if h == 1 {
+			return "1 hour ago"
+		}
+		return fmt.Sprintf("%d hours ago", h)
+	case diff < 7*24*time.Hour:
+		d := int(diff.Hours() / 24)
+		if d == 1 {
+			return "yesterday"
+		}
+		return fmt.Sprintf("%d days ago", d)
+	default:
+		return t.Format("2006-01-02 15:04")
+	}
 }