rework vehicle handling

frontend/src/services/incidents.ts

@@ -216,6 +216,9 @@ export const incidentsApi = {
     const response = await api.get<{ success: boolean; data: IncidentListResponse }>(
       `/api/incidents?${params.toString()}`
     );
+    if (!response.data?.data) {
+      throw new Error('Invalid API response');
+    }
     return response.data.data;
   },
 
@@ -227,6 +230,9 @@ export const incidentsApi = {
     const response = await api.get<{ success: boolean; data: EinsatzStats }>(
       `/api/incidents/stats${params}`
     );
+    if (!response.data?.data) {
+      throw new Error('Invalid API response');
+    }
     return response.data.data;
   },
 
@@ -237,6 +243,9 @@ export const incidentsApi = {
     const response = await api.get<{ success: boolean; data: EinsatzDetail }>(
       `/api/incidents/${id}`
     );
+    if (!response.data?.data) {
+      throw new Error('Invalid API response');
+    }
     return response.data.data;
   },
 
@@ -248,6 +257,9 @@ export const incidentsApi = {
       '/api/incidents',
       payload
     );
+    if (!response.data?.data) {
+      throw new Error('Invalid API response');
+    }
     return response.data.data;
   },
 
@@ -259,6 +271,9 @@ export const incidentsApi = {
       `/api/incidents/${id}`,
       payload
     );
+    if (!response.data?.data) {
+      throw new Error('Invalid API response');
+    }
     return response.data.data;
   },