Guard baseResponse.data access when baseLogId is falsy in getAllTrace

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/stores/allMapData.js

@@ -165,8 +165,10 @@ export default defineStore('allMapDataStore', {
         let baseResponse;
         const response = await this.$axios.get(api);
         this.allTrace = response.data;
-        if(baseLogId) baseResponse = await this.$axios.get(baseApi);
-        this.allBaseTrace = baseResponse.data;
+        if(baseLogId) {
+          baseResponse = await this.$axios.get(baseApi);
+          this.allBaseTrace = baseResponse.data;
+        }
       } catch(error) {
         apiError(error, 'Failed to load the Trace.');
       }

tests/stores/allMapData.test.js

@@ -191,6 +191,20 @@ describe('allMapDataStore', () => {
     });
   });
 
+  describe('getAllTrace', () => {
+    it('does not crash when baseLogId is falsy', async () => {
+      store.logId = 1;
+      store.baseLogId = null;
+      mockAxios.get.mockResolvedValue({ data: [{ id: 1 }] });
+
+      await store.getAllTrace();
+
+      expect(store.allTrace).toEqual([{ id: 1 }]);
+      // allBaseTrace should not be set when baseLogId is falsy
+      expect(store.allBaseTrace).toEqual([]);
+    });
+  });
+
   describe('getters', () => {
     it('traces getter sorts by id', () => {
       store.allTrace = [