Accounts with limits: a Newznab key and a tier per user, daily API and NZB counts, invites

ACCESS=accounts (config/access.ts; open stays the default and behaves as
before): Newznab and the catalog's releases routes name a user (apikey or
the web interface's token), whose tier sets searches and NZBs per UTC day
(Newznab 500/501, the catalog 429) and how far back they see (102/403).
Counted in one upsert per use, so the last one can't be taken twice;
caps, stats and refused requests aren't counted. Signup takes an invite
(SIGNUP), which may give a tier; ace access:invite, access:tier (extends a
running tier), access:suspend. The web interface signs in and shows the
day's usage and the Newznab key.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

app/exceptions/handler.ts

@@ -8,6 +8,9 @@ export default class HttpExceptionHandler extends ExceptionHandler {
    */
   protected debug = !app.inProduction
 
+  /** A refused request (AccessService: no key, a limit reached) is an answer, not a fault. */
+  protected ignoreCodes = ['E_ACCESS_DENIED']
+
   /**
    * The method is used for handling errors and returning
    * response to the client