fix: encounter data assignment

tests/samples/slay-the-spire-like/map/generator.test.ts

@@ -287,19 +287,36 @@ describe('generatePointCrawlMap', () => {
         }
     });
 
-    it('should assign encounters to nodes', () => {
+    it('should assign encounters to all non-Start/End nodes', () => {
         const map = generatePointCrawlMap(456);
 
-        let nodesWithEncounter = 0;
         for (const node of map.nodes.values()) {
-            if (node.encounter) {
-                nodesWithEncounter++;
-                expect(node.encounter.name).toBeTruthy();
-                expect(node.encounter.description).toBeTruthy();
+            if (node.type === MapNodeType.Start || node.type === MapNodeType.End) {
+                // Start and End nodes should not have encounters
+                expect(node.encounter).toBeUndefined();
+            } else {
+                // All other nodes (minion/elite/event/camp/shop/curio) must have encounters
+                expect(node.encounter, `Node ${node.id} (${node.type}) should have encounter data`).toBeDefined();
+                expect(node.encounter!.name).toBeTruthy();
+                expect(node.encounter!.description).toBeTruthy();
             }
         }
+    });
 
-        expect(nodesWithEncounter).toBeGreaterThan(0);
+    it('should assign encounters to all nodes across multiple seeds', () => {
+        // Test multiple seeds to ensure no random failure
+        for (let seed = 0; seed < 20; seed++) {
+            const map = generatePointCrawlMap(seed);
+
+            for (const node of map.nodes.values()) {
+                if (node.type === MapNodeType.Start || node.type === MapNodeType.End) {
+                    continue;
+                }
+                expect(node.encounter, `Seed ${seed}: Node ${node.id} (${node.type}) missing encounter`).toBeDefined();
+                expect(node.encounter!.name).toBeTruthy();
+                expect(node.encounter!.description).toBeTruthy();
+            }
+        }
     });
 
     it('should minimize same-layer repetitions in wild layer pairs', () => {