-- Migration: Allow authenticated users to look up profiles for sharing
-- Problem: The profiles RLS policies only allow users to see their own profile
-- (or admins to see all). This prevents the sharing feature from finding
-- users by email since the query is blocked by RLS.
-- Solution: Add a SELECT policy allowing any authenticated user to view profiles.

CREATE POLICY "Authenticated users can view profiles"
  ON profiles
  FOR SELECT
  USING (auth.uid() IS NOT NULL);