Revamp branding, UI styling, and HAFAS integration

- Update BRAND_GUIDELINES.md with new melting clock logo concept
- Rebrand UI components with new violet-to-pink gradient color scheme
- Implement HAFAS authentication headers and GET support in route
- Update logo SVGs to match new brand guidelines
- Fix HAFAS time format to exclude millisecond padding
- Update default station to Mödling Bahnhof
- Bump workspace package versions to 1.0.0

packages/api-client/src/client.ts

@@ -35,7 +35,8 @@ export class ApiClient {
     const url = buildUrl(this.baseUrl, "/api/geocode", params);
     const res = await fetch(url);
     if (!res.ok) throw new Error(`Geocode failed: ${res.status}`);
-    return res.json();
+    const result: GeocodeResult = await res.json();
+    return [result];
   }
 
   async getBikeRoute(
@@ -93,12 +94,19 @@ export class ApiClient {
     toStationExtId: string,
     date: Date,
   ): Promise<Journey[]> {
-    const url = buildUrl(this.baseUrl, "/api/hafas", {
+    // Use POST request as per the new implementation
+    const body = {
       from: fromStationExtId,
       to: toStationExtId,
       date: date.toISOString(),
+    };
+
+    const res = await fetch(`${this.baseUrl}/api/hafas`, {
+      method: "POST",
+      headers: { "Content-Type": "application/json" },
+      body: JSON.stringify(body)
     });
-    const res = await fetch(url);
+
     if (!res.ok) throw new Error(`Journey search failed: ${res.status}`);
     return res.json();
   }