[comapeo] Add script to POST alerts

[rudokemper]

We can create alerts like this:

curl -X POST \
  'https://my-comapeo-server.example/projects/MY_PROJECT_ID/remoteDetectionAlerts' \
  -H 'Authorization: Bearer YOUR_BEARER_TOKEN' \
  -H 'Content-Type: application/json' \
  --data '{
    "detectionDateStart": "2024-11-03T04:20:69Z",
    "detectionDateEnd": "2024-11-04T04:20:69Z",
    "sourceId": "abc123",
    "metadata": { "foo": "bar" },
    "geometry": {
      "type": "Point",
      "coordinates": [12, 34]
    }
  }'
# => HTTP 201, no response body

In doing so, we can use a future endpoint (WIP) to get an existing list of alerts stored by the server:

curl -X GET \
  'https://my-comapeo-server.example/projects/MY_PROJECT_ID/remoteDetectionAlerts' \
  -H 'Authorization: Bearer YOUR_BEARER_TOKEN' 
``` => HTTP 201, `{}` (containing alerts)

Using that list, we can determine which unique alerts to post.