Align preview typography with FFmpeg output, add video/song title split, and ship OSS updates.

Separate YouTube video titles from on-video song/artist fields with Pro gating, serve curated fonts and watermark assets for 1:1 preview parity, and include billing/API/docs/deploy stack for self-hosted release.

tailwind.config.ts

@@ -1,4 +1,5 @@
 import type { Config } from "tailwindcss";
+import typography from "@tailwindcss/typography";
 
 const config: Config = {
   content: [
@@ -21,7 +22,7 @@ const config: Config = {
       },
     },
   },
-  plugins: [],
+  plugins: [typography],
 };
 
 export default config;