Add 6 online board route pages

Start page, flight/departure/arrival/route search pages,
and flight details page. Each route is thin: parses URL
params, lazy-loads the feature component with Suspense.

src/routes/[lang]/onlineboard/[params]/page.tsx

@@ -0,0 +1,37 @@
+/**
+ * Online Board flight details route.
+ *
+ * Parses flight ID from URL, renders detailed flight info.
+ * URL: /{lang}/onlineboard/{carrier}{flightNumber}-{yyyyMMdd}
+ */
+
+import { lazy, Suspense } from "react";
+import { useParams } from "@modern-js/runtime/router";
+import { parseFlightUrlParams } from "@/features/online-board/url.js";
+import { FlightListSkeleton } from "@/ui/flights/FlightListSkeleton.js";
+
+const OnlineBoardDetailsPage = lazy(() =>
+  import("@/features/online-board/components/OnlineBoardDetailsPage.js").then(
+    (m) => ({ default: m.OnlineBoardDetailsPage }),
+  ),
+);
+
+export default function FlightDetailsPage(): JSX.Element {
+  const routeParams = useParams<{ params: string }>();
+  const raw = routeParams.params ?? "";
+  const parsed = parseFlightUrlParams(raw);
+
+  if (!parsed) {
+    return (
+      <div data-testid="invalid-params">
+        <p>Invalid flight parameters.</p>
+      </div>
+    );
+  }
+
+  return (
+    <Suspense fallback={<FlightListSkeleton count={1} />}>
+      <OnlineBoardDetailsPage flightId={parsed} />
+    </Suspense>
+  );
+}

src/routes/[lang]/onlineboard/arrival/[params]/page.tsx

@@ -0,0 +1,46 @@
+/**
+ * Online Board arrival search route.
+ *
+ * Parses station params from URL, renders shared search page.
+ * URL: /{lang}/onlineboard/arrival/{station}-{yyyyMMdd}[-{timeRange}]
+ */
+
+import { lazy, Suspense } from "react";
+import { useParams } from "@modern-js/runtime/router";
+import { parseStationUrlParams } from "@/features/online-board/url.js";
+import { FlightListSkeleton } from "@/ui/flights/FlightListSkeleton.js";
+
+const OnlineBoardSearchPage = lazy(() =>
+  import("@/features/online-board/components/OnlineBoardSearchPage.js").then(
+    (m) => ({ default: m.OnlineBoardSearchPage }),
+  ),
+);
+
+export default function ArrivalSearchPage(): JSX.Element {
+  const routeParams = useParams<{ params: string }>();
+  const raw = routeParams.params ?? "";
+  const parsed = parseStationUrlParams(raw);
+
+  if (!parsed) {
+    return (
+      <div data-testid="invalid-params">
+        <p>Invalid arrival parameters.</p>
+      </div>
+    );
+  }
+
+  const searchParams = {
+    type: "arrival" as const,
+    station: parsed.station,
+    date: parsed.date,
+    ...(parsed.timeFrom !== undefined && parsed.timeTo !== undefined
+      ? { timeFrom: parsed.timeFrom, timeTo: parsed.timeTo }
+      : {}),
+  };
+
+  return (
+    <Suspense fallback={<FlightListSkeleton />}>
+      <OnlineBoardSearchPage params={searchParams} />
+    </Suspense>
+  );
+}

src/routes/[lang]/onlineboard/departure/[params]/page.tsx

@@ -0,0 +1,46 @@
+/**
+ * Online Board departure search route.
+ *
+ * Parses station params from URL, renders shared search page.
+ * URL: /{lang}/onlineboard/departure/{station}-{yyyyMMdd}[-{timeRange}]
+ */
+
+import { lazy, Suspense } from "react";
+import { useParams } from "@modern-js/runtime/router";
+import { parseStationUrlParams } from "@/features/online-board/url.js";
+import { FlightListSkeleton } from "@/ui/flights/FlightListSkeleton.js";
+
+const OnlineBoardSearchPage = lazy(() =>
+  import("@/features/online-board/components/OnlineBoardSearchPage.js").then(
+    (m) => ({ default: m.OnlineBoardSearchPage }),
+  ),
+);
+
+export default function DepartureSearchPage(): JSX.Element {
+  const routeParams = useParams<{ params: string }>();
+  const raw = routeParams.params ?? "";
+  const parsed = parseStationUrlParams(raw);
+
+  if (!parsed) {
+    return (
+      <div data-testid="invalid-params">
+        <p>Invalid departure parameters.</p>
+      </div>
+    );
+  }
+
+  const searchParams = {
+    type: "departure" as const,
+    station: parsed.station,
+    date: parsed.date,
+    ...(parsed.timeFrom !== undefined && parsed.timeTo !== undefined
+      ? { timeFrom: parsed.timeFrom, timeTo: parsed.timeTo }
+      : {}),
+  };
+
+  return (
+    <Suspense fallback={<FlightListSkeleton />}>
+      <OnlineBoardSearchPage params={searchParams} />
+    </Suspense>
+  );
+}

src/routes/[lang]/onlineboard/flight/[params]/page.tsx

@@ -0,0 +1,45 @@
+/**
+ * Online Board flight number search route.
+ *
+ * Parses flight params from URL, renders shared search page.
+ * URL: /{lang}/onlineboard/flight/{carrier}{flightNumber}-{yyyyMMdd}
+ */
+
+import { lazy, Suspense } from "react";
+import { useParams } from "@modern-js/runtime/router";
+import { parseFlightUrlParams } from "@/features/online-board/url.js";
+import { FlightListSkeleton } from "@/ui/flights/FlightListSkeleton.js";
+
+const OnlineBoardSearchPage = lazy(() =>
+  import("@/features/online-board/components/OnlineBoardSearchPage.js").then(
+    (m) => ({ default: m.OnlineBoardSearchPage }),
+  ),
+);
+
+export default function FlightSearchPage(): JSX.Element {
+  const routeParams = useParams<{ params: string }>();
+  const raw = routeParams.params ?? "";
+  const parsed = parseFlightUrlParams(raw);
+
+  if (!parsed) {
+    return (
+      <div data-testid="invalid-params">
+        <p>Invalid flight parameters.</p>
+      </div>
+    );
+  }
+
+  return (
+    <Suspense fallback={<FlightListSkeleton />}>
+      <OnlineBoardSearchPage
+        params={{
+          type: "flight",
+          carrier: parsed.carrier,
+          flightNumber: parsed.flightNumber,
+          suffix: parsed.suffix,
+          date: parsed.date,
+        }}
+      />
+    </Suspense>
+  );
+}

src/routes/[lang]/onlineboard/page.tsx

@@ -0,0 +1,22 @@
+/**
+ * Online Board start page route.
+ *
+ * Renders the search form landing page. No API calls on load.
+ * URL: /{lang}/onlineboard
+ */
+
+import { lazy, Suspense } from "react";
+
+const OnlineBoardStartPage = lazy(() =>
+  import("@/features/online-board/components/OnlineBoardStartPage.js").then(
+    (m) => ({ default: m.OnlineBoardStartPage }),
+  ),
+);
+
+export default function OnlineBoardPage(): JSX.Element {
+  return (
+    <Suspense fallback={<div aria-busy="true">Loading...</div>}>
+      <OnlineBoardStartPage />
+    </Suspense>
+  );
+}

src/routes/[lang]/onlineboard/route/[params]/page.tsx

@@ -0,0 +1,47 @@
+/**
+ * Online Board route search page.
+ *
+ * Parses departure + arrival + date from URL, renders shared search page.
+ * URL: /{lang}/onlineboard/route/{dep}-{arr}-{yyyyMMdd}[-{timeRange}]
+ */
+
+import { lazy, Suspense } from "react";
+import { useParams } from "@modern-js/runtime/router";
+import { parseRouteUrlParams } from "@/features/online-board/url.js";
+import { FlightListSkeleton } from "@/ui/flights/FlightListSkeleton.js";
+
+const OnlineBoardSearchPage = lazy(() =>
+  import("@/features/online-board/components/OnlineBoardSearchPage.js").then(
+    (m) => ({ default: m.OnlineBoardSearchPage }),
+  ),
+);
+
+export default function RouteSearchPage(): JSX.Element {
+  const routeParams = useParams<{ params: string }>();
+  const raw = routeParams.params ?? "";
+  const parsed = parseRouteUrlParams(raw);
+
+  if (!parsed) {
+    return (
+      <div data-testid="invalid-params">
+        <p>Invalid route parameters.</p>
+      </div>
+    );
+  }
+
+  const searchParams = {
+    type: "route" as const,
+    departure: parsed.departure,
+    arrival: parsed.arrival,
+    date: parsed.date,
+    ...(parsed.timeFrom !== undefined && parsed.timeTo !== undefined
+      ? { timeFrom: parsed.timeFrom, timeTo: parsed.timeTo }
+      : {}),
+  };
+
+  return (
+    <Suspense fallback={<FlightListSkeleton />}>
+      <OnlineBoardSearchPage params={searchParams} />
+    </Suspense>
+  );
+}