fix: round-trip match objectives through ScenarioSerializer

src/Application/ScenarioSerializer.php

@@ -130,6 +130,14 @@ final class ScenarioSerializer
             $units[] = self::unitToArray($unit);
         }
 
+        $objectives = [];
+        foreach ($match->objectives as $id => $objective) {
+            $objectives[(string) $id] = [
+                'id' => $objective->id,
+                'position' => self::positionToArray($objective->position),
+            ];
+        }
+
         return [
             'battlefield' => [
                 'width' => $match->battlefield->width,
@@ -141,6 +149,7 @@ final class ScenarioSerializer
             'round' => $match->round,
             'winnerTeamId' => $match->winnerTeamId,
             'actionLog' => $match->actionLog,
+            'objectives' => $objectives,
             'victoryCondition' => $match->victoryCondition->value,
             'holdRoundsRequired' => $match->holdRoundsRequired,
             'objectiveControl' => $match->objectiveControl,
@@ -166,6 +175,14 @@ final class ScenarioSerializer
             $units[] = self::unitFromArray($row);
         }
 
+        $objectives = [];
+        foreach (($data['objectives'] ?? []) as $id => $row) {
+            $objectives[(string) $id] = new ObjectiveMarker(
+                (string) $row['id'],
+                self::positionFromArray($row['position']),
+            );
+        }
+
         return new MatchState(
             battlefield: $battlefield,
             units: $units,
@@ -173,7 +190,7 @@ final class ScenarioSerializer
             round: (int) $data['round'],
             winnerTeamId: $data['winnerTeamId'] ?? null,
             actionLog: array_map(static fn (mixed $entry): string => (string) $entry, $data['actionLog'] ?? []),
-            objectives: [],
+            objectives: $objectives,
             victoryCondition: VictoryCondition::from((string) $data['victoryCondition']),
             holdRoundsRequired: (int) $data['holdRoundsRequired'],
             objectiveControl: $data['objectiveControl'] ?? [],