fix(02-04): guard nullable static event sources

- Preserve dynamic event collection while narrowing static tile access
- Record the moverImpl type diagnostic as resolved

packages-user/data-state/src/hero/moverImpl.ts

@@ -202,13 +202,15 @@ export class DefaultHeroMoveTopImpl implements IHeroMoveTopImpl {
             }
         }
         if (loc) {
-            for (const [priority, id] of loc.static.tileEvent().get()) {
-                tileSources.push({
-                    priority,
-                    id,
-                    type: BlockEventType.TileEvent,
-                    tile: loc.static
-                });
+            if (loc.static) {
+                for (const [priority, id] of loc.static.tileEvent().get()) {
+                    tileSources.push({
+                        priority,
+                        id,
+                        type: BlockEventType.TileEvent,
+                        tile: loc.static
+                    });
+                }
             }
             for (const tile of loc.dynamics) {
                 for (const [priority, id] of tile.tileEvent().get()) {

packages-user/data-state/src/path/heroPathfinding.ts

@@ -202,6 +202,10 @@ export class HeroPathfinding implements IHeroPathfinding {
         this.system.useMover(mover);
     }
 
+    useMovable(movable: IObjectMovable | null): void {
+        this.system.useMovable(movable);
+    }
+
     useFallbackPolicy(policy: PathFallbackPolicy | null): void {
         this.system.useFallbackPolicy(policy);
     }