feat: add webpush and sadhna tracker

app/api/og/route.tsx

@@ -1,3 +1,5 @@
+/* eslint-disable @next/next/no-img-element -- Satori (ImageResponse) only
+   renders raw <img>; next/image doesn't work inside OG image generation. */
 import { ImageResponse } from "next/og";
 import { readFile } from "node:fs/promises";
 import { join } from "node:path";
@@ -79,6 +81,7 @@ export async function GET(request: Request) {
         >
           {/* Prabhupāda image — already contains quote mark and branding */}
           <img
+            alt=""
             src={imgSrc}
             width={420}
             height={590}