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

oauth-public.staging.key

@@ -1,14 +1,14 @@
------BEGIN PUBLIC KEY-----
-MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAi4Ta8r01zKaGSnGi1EiD
-uMFWRXBlK4y/ZIfWBpElmS2ygv4mGeP3hT4Flm696Z2UMy56KC+c7CC/PQCiutLk
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-kADR2lmydNodJzqpSD+8yQqnAhOZNtNF4qwQ3g13fRvHycBp3G2nlCfOn2g5PmYD
-KYBKqvTq4PQH4E+K3pbbMz6zf/T6Dw7zTfksqHR4hqMgN6byRRxmwuBczIumcu9b
-y7xbgoIGIVZXgJliALPFi+zTPTN7c8MedFs/xCBHCmzWYTCZfHgr8RPRewD19tCG
-NSny5R0vlArpuZCTTgedPESDeGU4eNEddg4yXFzKlpE2nNuvzZ1Ohruc5ETOSU19
-RTCBUBkjeL6ESZRd/yKGjbVx4dEYxZdIz4yBl+hZ2ZOIyG7L3zPrccAWrPpG56xr
-E5IDBXxLFhaJ5LlyEAGQehB0ShEuCdkr88Xz7ba9PHpGqY83l4//ULrqPIZPAa4Z
-E3AWHT1ZtXNPeA4SzZ9Y9Oij4M3chyHxqM0lL3kYP+dstZehTujStfElDIx2Ni10
-73tILu4edYS0FxsL19m8gbsCAwEAAQ==
------END PUBLIC KEY-----
+-----BEGIN PUBLIC KEY-----
+MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEArGn4rtfKjlLtJsh61eW/
+cZdLC6ECbSUKVTZlLLvRoYr7Li6RKRDiIj7KEy+lRL4miiMtadXNx6d89KZwr8SL
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+celGHTIXiP3lDNIG3sR/H5v6vwGeqfu9MBQ2Ksrz259O1aojqRQ+d9k1dj8pcbuC
+ZurlI4++JOsmecc4B3g8tvlsevlb0UbtW/JHKckgK/JL9PO+04WJD+hSJrEhokLq
+aB5Ceg6FKwqoM0l7dtoHRka8vh/q/UU3oawUESoZ5l3TjWI4b0jZzsJqE4cyKgK3
+S3tBooj4rM4dOh4y7crD1PcsJG/IF2bg4YEAO8q8Fz6TmOzCM20oBhaLrFJOnYph
+Xhhl7ZPHqCCIt6HSDbwlFJw1Iw/2nygnkAZ0iJV/EQl0M+zlDGEv41SWHQfsLTK6
+HBSM1QSEbuMz0sF/TpolYEvYso+nCDjDzQ4MFdhGxH6OVyuSySm6nG0fK/Bio5Ow
+6SNz0wIg3RagjzTbljHsT4cCAwEAAQ==
+-----END PUBLIC KEY-----