feat: add feed

components/auth/auth-provider.tsx

@@ -9,6 +9,7 @@ import {
   useState,
 } from "react";
 import { auth, type User } from "@/lib/auth";
+import { feed } from "@/lib/social";
 
 /**
  * AuthProvider holds the current-user state and exposes the auth actions
@@ -89,6 +90,10 @@ export function AuthProvider({ children }: { children: React.ReactNode }) {
   );
 
   const logOut = useCallback(async () => {
+    // Drop the home-feed seen-set first, while the auth cookie is still set
+    // (the reset endpoint is auth-gated). Best-effort — a stale set would
+    // otherwise expire on its own TTL.
+    await feed.reset().catch(() => {});
     await auth.logOut();
     setUser(null);
   }, []);