feat: expose person bio/banner (#27)

Author: aeharding

src/providers/piefed/compat.ts

@@ -115,6 +115,8 @@ export function toPerson(
   return {
     ...person,
     avatar: person.avatar ?? undefined, // TODO piefed types are wrong, this is returned as null if not set
+    banner: person.banner ?? undefined, // TODO piefed types are wrong, this is returned as null if not set
+    bio: person.about ?? undefined, // TODO piefed types are wrong, this is returned as null if not set
     bot_account: person.bot,
     display_name: person.title ?? undefined, // TODO piefed types are wrong, this is returned as null if not set
     name: person.user_name!,

src/schemas/Person.ts

@@ -3,6 +3,8 @@ import { z } from "zod/v4-mini";
 export const Person = z.object({
   actor_id: z.string(),
   avatar: z.optional(z.string()),
+  banner: z.optional(z.string()),
+  bio: z.optional(z.string()),
   bot_account: z.boolean(),
   deleted: z.boolean(),
   display_name: z.optional(z.string()),