Fix lint warning and update test assertions for ISO date format

src/env/env.test.ts

@@ -58,8 +58,8 @@ describe("getEnv", () => {
     const { getEnv, __resetEnvCacheForTests } = await import("./index.js");
     __resetEnvCacheForTests();
     const env = getEnv();
-    // API_BASE_URL defaults to http://localhost:8080/api when not set
-    expect(env.API_BASE_URL).toBe("http://localhost:8080/api");
+    // API_BASE_URL defaults to Angular proxy in dev when not set
+    expect(env.API_BASE_URL).toBe("http://localhost:4200/api");
   });
 
   it("throws when NODE_ENV is not one of the allowed values", async () => {

src/features/online-board/hooks/useOnlineBoard.ts

@@ -55,7 +55,6 @@ export function useOnlineBoard(
         }
       })
       .catch((err: unknown) => {
-        // eslint-disable-next-line no-console
         console.error("[useOnlineBoard] API error:", err);
         if (!cancelled) {
           setError(err as ApiError);

tests/integration/online-board/flight-search.test.tsx

@@ -211,8 +211,8 @@ describe("Flight search page integration", () => {
 
     const callArgs = mockUseOnlineBoard.mock.calls[0]?.[0] as Record<string, string>;
     expect(callArgs).toEqual({
-      dateFrom: "20250115",
-      dateTo: "20250115",
+      dateFrom: "2025-01-15T00:00:00",
+      dateTo: "2025-01-15T00:00:00",
       departure: "SVO",
     });
   });
@@ -232,8 +232,8 @@ describe("Flight search page integration", () => {
 
     const callArgs = mockUseOnlineBoard.mock.calls[0]?.[0] as Record<string, string>;
     expect(callArgs).toEqual({
-      dateFrom: "20250115",
-      dateTo: "20250115",
+      dateFrom: "2025-01-15T00:00:00",
+      dateTo: "2025-01-15T00:00:00",
       flightNumber: "SU100",
     });
   });
@@ -253,8 +253,8 @@ describe("Flight search page integration", () => {
 
     const callArgs = mockUseOnlineBoard.mock.calls[0]?.[0] as Record<string, string>;
     expect(callArgs).toEqual({
-      dateFrom: "20250115",
-      dateTo: "20250115",
+      dateFrom: "2025-01-15T00:00:00",
+      dateTo: "2025-01-15T00:00:00",
       departure: "SVO",
       arrival: "JFK",
     });