feat(og): improve design with background image, logo and dynamic geometry

lib/og-helper.tsx

@@ -48,6 +48,28 @@ export async function getOgFonts() {
   }
 }
 
+export function getOgBackground() {
+  try {
+    const bgPath = join(process.cwd(), 'public/assets/photos/Etib_E-tib_Tiefbau_Guben_Netzanbindung_Energie-100.jpg');
+    const bgBase64 = readFileSync(bgPath, 'base64');
+    return `data:image/jpeg;base64,${bgBase64}`;
+  } catch (err) {
+    console.error('[OG] Failed to load background', err);
+    return undefined;
+  }
+}
+
+export function getOgLogo() {
+  try {
+    const logoPath = join(process.cwd(), 'public/assets/logo-white.png');
+    const logoBase64 = readFileSync(logoPath, 'base64');
+    return `data:image/png;base64,${logoBase64}`;
+  } catch (err) {
+    console.error('[OG] Failed to load logo', err);
+    return undefined;
+  }
+}
+
 /**
  * Common configuration for OG images
  */