Add snapshot image context action

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    "author": {
      "email": "drschwabe@fastmail.com",
      "name": "Derrick Schwabe",
      "time": 1788762627
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    "committer": {
      "email": "drschwabe@fastmail.com",
      "name": "Derrick Schwabe",
      "time": 1788762627
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  "issuedAt": "2026-09-07T14:42:38.472Z",
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