feat(MED-111): update navigation links and adjust invitation handling

supabase/migrations/20250730091700_fix_company_invitations.sql

@@ -1,4 +1,4 @@
-drop function if exists medreport.add_invitations_to_account(text, medreport.invitation[]);
+drop function if exists medreport.add_invitations_to_account(text, invitation[]);
 
 drop type if exists medreport.invitation;
 

supabase/migrations/20250804132600_fix_employee_invitations.sql

@@ -0,0 +1,45 @@
+grant
+    execute on function medreport.accept_invitation (text, uuid) to service_role;
+
+
+CREATE OR REPLACE FUNCTION medreport.accept_invitation(token text, user_id uuid)
+ RETURNS uuid
+ LANGUAGE plpgsql
+ SET search_path TO ''
+AS $function$declare
+    target_account_id uuid;
+    target_role varchar(50);
+begin
+    select
+        account_id,
+        role into target_account_id,
+        target_role
+    from
+        medreport.invitations
+    where
+            invite_token = token
+      and expires_at > now();
+
+    if not found then
+        raise exception 'Invalid or expired invitation token';
+    end if;
+
+    insert into medreport.accounts_memberships(
+        user_id,
+        account_id,
+        account_role)
+    values (
+               accept_invitation.user_id,
+               target_account_id,
+               target_role);
+
+    delete from medreport.invitations
+    where invite_token = token;
+
+    update medreport.notifications
+    set dismissed = true
+    where link ilike '%' || token || '%';
+
+    return target_account_id;
+end;$function$
+;