encourage expiration for most UCANs claimed through access/claim until revocation is supported

[gobengo]

I've been testing the authorization flow the last couple days on staging.
I claim a lot of delegations from access/claim (we'll need paging/filtering but thats another issue entirely).
Here my concern is that, especially while testing, and many of our dev users will, it's very easy to create a bunch of delegations with no expiration at all. I think we should:

• really encourage always having an expiration
• consider enforcing expiration at various points in our implementation
• consider blocking some ucans with no expiration that are sent via access/delegate
• consider implicitly filtering some ucans from access/claim that dont have an expiry
• consider explicitly adding a filter query to access/claim to
  • not return expired delegations
  • maybe allow filtering between delegations that have an expiry vs those that don't.
    • consider how to sort the access/claim delegations that have no expiry

Rationale:

• this encourages delegations that expire
• this considers encourages delegations that expire soon
• its good to have them expire because
  • we dont offer a way of revoking/deleting a delegation
  • so user can't remove a permission i.e. they can't undo a mistake...
    • use case: someone builds a group space on w3s. Then someone leaves a group and they should no longer be able to store/add.

[gobengo]

These are all the delegations I just claimed:

[
  {
    "iss": "did:mailto:dag.house:bengo",
    "aud": "did:key:z6Mki2fuXwakaDB4QJGhA4c2AoYJTZN2cmNw2zELwehsG7t7",
    "v": "0.9.1",
    "s": {
      "/": {
        "bytes": "gKADAA"
      }
    },
    "exp": null,
    "att": [
      {
        "can": "store/*",
        "with": "ucan:*"
      },
      {
        "can": "provider/add",
        "with": "ucan:*"
      }
    ],
    "prf": [
      {
        "iss": "did:key:z6Mkjy2rS6b2HRFFTaYkGqn8fpF52E8W8CkZpUp2qh85J8fK",
        "aud": "did:mailto:dag.house:bengo",
        "v": "0.9.1",
        "s": {
          "/": {
            "bytes": "7aEDQDsN6DVmpcLnA5+z29B9Gb/5+u3sj4rYZxMDHn65JcQjv5js6qCLvApLWtbZ8sYMRuoyVeDf7GQswrI1bvGwrAQ"
          }
        },
        "exp": 1678231538,
        "att": [
          {
            "can": "store/add",
            "with": "did:key:z6Mkjy2rS6b2HRFFTaYkGqn8fpF52E8W8CkZpUp2qh85J8fK"
          },
          {
            "can": "store/list",
            "with": "did:key:z6Mkjy2rS6b2HRFFTaYkGqn8fpF52E8W8CkZpUp2qh85J8fK"
          }
        ],
        "prf": [],
        "/": "bafyreiagm64gvcbidzfq5s3cxxshw7zmgi72ilqmctbtasiague2cdeak4"
      },
      {
        "iss": "did:key:z6MkqHN6Aj911z9fJSgvqcvBh2nntPKBvNZS45NUxkkeLkFR",
        "aud": "did:mailto:dag.house:bengo",
        "v": "0.9.1",
        "s": {
          "/": {
            "bytes": "7aEDQGmdZQXtGv67rGvMwsilDe9rhsoDRYZ7ZkDcHvP+sMImhWHUN3RIqTFIIG3J6vfRRFnNCTprHCMw1cF07TVdSQg"
          }
        },
        "exp": 1678232078,
        "att": [
          {
            "can": "store/add",
            "with": "did:key:z6MkqHN6Aj911z9fJSgvqcvBh2nntPKBvNZS45NUxkkeLkFR"
          },
          {
            "can": "store/list",
            "with": "did:key:z6MkqHN6Aj911z9fJSgvqcvBh2nntPKBvNZS45NUxkkeLkFR"
          }
        ],
        "prf": [],
        "/": "bafyreicljt4mw7ly5kk2fsc2p27sitjurlqx5il7ntiun475mnyucg7mni"
      },
      {
        "iss": "did:key:z6MkqHN6Aj911z9fJSgvqcvBh2nntPKBvNZS45NUxkkeLkFR",
        "aud": "did:mailto:dag.house:bengo",
        "v": "0.9.1",
        "s": {
          "/": {
            "bytes": "7aEDQNdpPwqE8Gw2AiTiC306NAsUWIQAR5h1P7zW33UttK07o9ENYiTyF67LfDXpsP3BF7Cv/p7XLRHEvGzwYE/3TgU"
          }
        },
        "exp": 1678233402,
        "att": [
          {
            "can": "store/add",
            "with": "did:key:z6MkqHN6Aj911z9fJSgvqcvBh2nntPKBvNZS45NUxkkeLkFR"
          },
          {
            "can": "store/list",
            "with": "did:key:z6MkqHN6Aj911z9fJSgvqcvBh2nntPKBvNZS45NUxkkeLkFR"
          }
        ],
        "prf": [],
        "/": "bafyreib7vflesmnadircqq5latl2wppmiqbedj6tm7sgpj54af3uy2a3zq"
      },
      {
        "iss": "did:key:z6Mkqv8QbGnjsg7ute4QitH5ZWyjxYAV9fugjJ7m4pR23p5H",
        "aud": "did:mailto:dag.house:bengo",
        "v": "0.9.1",
        "s": {
          "/": {
            "bytes": "7aEDQKGtfryrnIZ0xd+0i775bQN2kX/1aC4YMF2hcGh1Wlh+DM8Vrp2HoKhzYTapvgcUFwPN35/PS9ZJZczu9xe+oQw"
          }
        },
        "exp": 1678233464,
        "att": [
          {
            "can": "store/add",
            "with": "did:key:z6Mkqv8QbGnjsg7ute4QitH5ZWyjxYAV9fugjJ7m4pR23p5H"
          },
          {
            "can": "store/list",
            "with": "did:key:z6Mkqv8QbGnjsg7ute4QitH5ZWyjxYAV9fugjJ7m4pR23p5H"
          }
        ],
        "prf": [],
        "/": "bafyreiajhldnp4xafq7zbdemsmfrlh52e7ongvv6jbp7ereis3squzxgtm"
      },
      {
        "iss": "did:key:z6MkihhL59AfFhq5QTPRGckoZU8cHDFTJnku7M6c5D7X11Q7",
        "aud": "did:mailto:dag.house:bengo",
        "v": "0.9.1",
        "s": {
          "/": {
            "bytes": "7aEDQA4KuJZFcaVBUkVxk/wQKmOC7fJFIAc7z/hEI5rA0WOxPS8pZL462/7hCSqlJt7wjWtRDdTGjE1fSAlDKQSw2QE"
          }
        },
        "exp": 1678233649,
        "att": [
          {
            "can": "store/add",
            "with": "did:key:z6MkihhL59AfFhq5QTPRGckoZU8cHDFTJnku7M6c5D7X11Q7"
          },
          {
            "can": "store/list",
            "with": "did:key:z6MkihhL59AfFhq5QTPRGckoZU8cHDFTJnku7M6c5D7X11Q7"
          }
        ],
        "prf": [],
        "/": "bafyreigudhpchbv23dis6topmj56o5x7sl7tc2k3pm4gt4hg3y5eewusb4"
      },
      {
        "iss": "did:key:z6Mkhnd9kKb9KXgbL2oYEaQR25q5wi9ybeBP1fijy1DnEmcv",
        "aud": "did:mailto:dag.house:bengo",
        "v": "0.9.1",
        "s": {
          "/": {
            "bytes": "7aEDQKwkUe/XOe8tDxGA6CwZLUE4uV+ZP44pVHAaPXT8iuvEO2rVT1brtx6c39vZBXPhX6u54voUT1aJe3a51z9GAQ4"
          }
        },
        "exp": 1678233809,
        "att": [
          {
            "can": "store/add",
            "with": "did:key:z6Mkhnd9kKb9KXgbL2oYEaQR25q5wi9ybeBP1fijy1DnEmcv"
          },
          {
            "can": "store/list",
            "with": "did:key:z6Mkhnd9kKb9KXgbL2oYEaQR25q5wi9ybeBP1fijy1DnEmcv"
          }
        ],
        "prf": [],
        "/": "bafyreiemwxr4tzftgoisimewctumgexjvi7q6hqvbp7oio4qvccx2k77n4"
      },
      {
        "iss": "did:key:z6MkvgtAym8XChZSMdqPNbmvoLWojCfr6D5B4CYHqLWS8hde",
        "aud": "did:mailto:dag.house:bengo",
        "v": "0.9.1",
        "s": {
          "/": {
            "bytes": "7aEDQHo1ACtbFucekIfi6sm95r4Igm6o6uPi58mwvivc4dmjkJf/XFEbYngv/3n8tenpfHtu9xAsRPqeaPTY0w+OCAE"
          }
        },
        "exp": 1678233929,
        "att": [
          {
            "can": "store/add",
            "with": "did:key:z6MkvgtAym8XChZSMdqPNbmvoLWojCfr6D5B4CYHqLWS8hde"
          },
          {
            "can": "store/list",
            "with": "did:key:z6MkvgtAym8XChZSMdqPNbmvoLWojCfr6D5B4CYHqLWS8hde"
          }
        ],
        "prf": [],
        "/": "bafyreie34al2yyo7uossi2yimsdrfmrnlptc7wmcfubxxsdi4y24zz2tkm"
      },
      {
        "iss": "did:key:z6Mkfj1ugDjsPK2aToVvj2RrBzPKxfbEiPiAFEFJ8Yiyjkpc",
        "aud": "did:mailto:dag.house:bengo",
        "v": "0.9.1",
        "s": {
          "/": {
            "bytes": "7aEDQNnvjCYC65BImauWr0uKFhCIi6fpAt4lao0FqoUktr9vSTqZ5EtzQAyOwA0x2yVxjdPQODAVIubzop1/ihaUtgY"
          }
        },
        "exp": 1678234776,
        "att": [
          {
            "can": "store/add",
            "with": "did:key:z6Mkfj1ugDjsPK2aToVvj2RrBzPKxfbEiPiAFEFJ8Yiyjkpc"
          },
          {
            "can": "store/list",
            "with": "did:key:z6Mkfj1ugDjsPK2aToVvj2RrBzPKxfbEiPiAFEFJ8Yiyjkpc"
          }
        ],
        "prf": [],
        "/": "bafyreie62qfnzjmak7rsjxp7y5cw6r5w4cavokxzxvsvrcoifc54w3kmnm"
      },
      {
        "iss": "did:key:z6Mkt7TD32AxRym9S8nZz8SmfrvcR3sUX8D5mcTCnMibi76v",
        "aud": "did:mailto:dag.house:bengo",
        "v": "0.9.1",
        "s": {
          "/": {
            "bytes": "7aEDQDXKPRC/vp2DYcTiZtUdXIJSA+VwX2PxDegf3QsD1iDJmzgIkhu1Nks5F8XDSvGY2gOZGHSZPrNJRV3Pxo3quww"
          }
        },
        "exp": 1678234982,
        "att": [
          {
            "can": "store/add",
            "with": "did:key:z6Mkt7TD32AxRym9S8nZz8SmfrvcR3sUX8D5mcTCnMibi76v"
          },
          {
            "can": "store/list",
            "with": "did:key:z6Mkt7TD32AxRym9S8nZz8SmfrvcR3sUX8D5mcTCnMibi76v"
          }
        ],
        "prf": [],
        "/": "bafyreicrepg3lhc4lpard5tv6bqdwoncfpxet4gbna3oauikcixbzceudu"
      }
    ],
    "/": "bafyreic2nf3lqhiqhrrgwggbtbc4rjqhovplpfintjowujtdw6utqfz2me"
  },
  {
    "iss": "did:web:staging.web3.storage",
    "aud": "did:key:z6Mki2fuXwakaDB4QJGhA4c2AoYJTZN2cmNw2zELwehsG7t7",
    "v": "0.9.1",
    "s": {
      "/": {
        "bytes": "7aEDQOAcsXZ9yAnzx7wnUnlofXgbFbLmOHE6cOvevm7E18lB4xjyrL6V0nOyKmbSZRxhSL7mxnxAy7769LH3fSbZggk"
      }
    },
    "exp": null,
    "att": [
      {
        "can": "ucan/attest",
        "nb": {
          "proof": {
            "/": "bafyreic2nf3lqhiqhrrgwggbtbc4rjqhovplpfintjowujtdw6utqfz2me"
          }
        },
        "with": "did:web:staging.web3.storage"
      }
    ],
    "prf": [],
    "/": "bafyreifubk24jrixim5m4n36ltg7br6457ihbhqa7ms4myrczyv34upcyy"
  }
]