Weekly suggestions schedule (Feature 20) (#172)

Co-authored-by: orchestrator-agent <20+orchestrator-agent@code.cubecraftcreations.com>

internal/chat/messages_test.go

@@ -110,9 +110,19 @@ func TestMessages(t *testing.T) {
 			key:   "new_suggestions:01J9BATCH",
 			url:   "/discover",
 			week:  "2026-10-12",
-			title: "New Side quests are in",
+			title: "5 new Side quests are in",
 			body:  "Lemon orzo, Bibimbap, Shakshuka + 2 more",
-			chatT: "New Side quests are in: Lemon orzo, Bibimbap, Shakshuka + 2 more. Open Discover →",
+			chatT: "5 new Side quests are in: Lemon orzo, Bibimbap, Shakshuka + 2 more. Open Discover →",
+		},
+		{
+			name:  "new suggestions of a scheduled week",
+			ev:    NewSuggestions("2026-W42", week, []string{"Pho"}),
+			key:   "new_suggestions:2026-W42",
+			url:   "/discover",
+			week:  "2026-10-12",
+			title: "1 new Side quest is in",
+			body:  "Pho",
+			chatT: "1 new Side quest is in: Pho. Open Discover →",
 		},
 		{
 			name:  "rotation review",