feat: implement membership confirmation flow and update related functionalities

supabase/migrations/20250707150416_membership_confirmation.sql

@@ -0,0 +1,41 @@
+alter table "public"."accounts_memberships" add column "has_seen_confirmation" boolean not null default false;
+
+set check_function_bodies = off;
+
+CREATE OR REPLACE FUNCTION public.has_unseen_membership_confirmation(p_user_id uuid DEFAULT auth.uid())
+ RETURNS boolean
+ LANGUAGE sql
+ SECURITY DEFINER
+ SET search_path TO 'public', 'extensions'
+AS $function$
+  select exists (
+    select 1
+    from public.accounts_memberships am
+    where am.user_id = p_user_id
+      and am.has_seen_confirmation = false
+  );
+$function$
+;
+
+grant execute on function public.has_unseen_membership_confirmation(uuid)
+  to authenticated, anon;
+
+drop function if exists "public"."has_personal_code"(account_id uuid);
+
+CREATE OR REPLACE FUNCTION public.has_consent_personal_data(account_id uuid)
+ RETURNS boolean
+ LANGUAGE plpgsql
+ SECURITY DEFINER
+ SET search_path = ''
+AS $function$BEGIN
+  RETURN EXISTS (
+    SELECT 1
+    FROM public.accounts
+    WHERE id = account_id
+      AND has_consent_personal_data IS TRUE
+  );
+END;$function$
+;
+
+grant execute on function public.has_consent_personal_data(uuid)
+  to authenticated, anon;