Fix the anikeen API guard and register its user provider

- Register the guard driver and the anikeen user provider with static closures:
  Laravel binds extend() closures to the AuthManager, so $this->makeGuard() failed.
- Look the token's sub up in the user's Anikeen ID column (anikeen_id by default;
  provider 'column', services.anikeen.user_id_column or useUserIdField()),
  not in the primary key; works with the anikeen, eloquent and database providers.
- JwtParser: key from services.anikeen.public_key(_path) or the bundled key, read
  once per process; misconfiguration is an error, not a 401. Passport tokens have
  no client claim, so it is optional now.
- Optional revocation check against Anikeen ID (verify_revocation), cached per token.
- anikeenTokenCan() without a token, anikeenTokenCanAny(), scope middleware accept
  JSON responses.
- Update the bundled staging public key to the current staging key.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01VbpgPaLqhBzo1AXHNs9Cx5

src/Id/Providers/AnikeenIdUserProvider.php

@@ -18,7 +18,8 @@ class AnikeenIdUserProvider implements UserProvider
         private AnikeenId $anikeenId,
         private Request   $request,
         private string    $model,
-        private array     $fields = []
+        private array     $fields = [],
+        private ?string   $column = null,
     ) {
         $this->accessTokenField = AnikeenId::getAccessTokenField();
     }
@@ -97,6 +98,17 @@ class AnikeenIdUserProvider implements UserProvider
             ->first();
     }
 
+    /**
+     * Find the user of an Anikeen ID (the `sub` of an access token) by the provider's `column`,
+     * else `services.anikeen.user_id_column`, else AnikeenId::getUserIdField() (`anikeen_id`).
+     */
+    public function retrieveByAnikeenId(string $anikeenId): ?Authenticatable
+    {
+        $column = $this->column ?: (config('services.anikeen.user_id_column') ?: AnikeenId::getUserIdField());
+
+        return $this->newModelQuery()->where($column, $anikeenId)->first();
+    }
+
     /**
      * {@inheritDoc}
      */