Stabilize beta release with warning cleanup and edge-case fixes

SportsTime/Planning/Engine/ScenarioBPlanner.swift

@@ -298,16 +298,9 @@ final class ScenarioBPlanner: ScenarioPlanner {
             to: lastGameDate
         ).day ?? 0
 
-        // If selected games span more days than trip duration, can't fit
+        // If selected games span more days than trip duration, no valid window exists.
         if gameSpanDays >= duration {
-            // Just return one window that exactly covers the games
-            let start = firstGameDate
-            let end = Calendar.current.date(
-                byAdding: .day,
-                value: gameSpanDays + 1,
-                to: start
-            ) ?? lastGameDate
-            return [DateInterval(start: start, end: end)]
+            return []
         }
 
         // Generate sliding windows