Get all achievements and their completion stats

curl --request GET \
  --url https://app.trophy.so/api/achievements \
  --header 'X-API-KEY: <api-key>'

[
  {
    "id": "5100fe51-6bce-6j44-b0hs-bddc4e123682",
    "trigger": "api",
    "name": "Finish onboarding",
    "description": "Complete the onboarding process.",
    "badgeUrl": "https://example.com/badge.png",
    "key": "finish-onboarding",
    "completions": 8,
    "completedPercentage": 80
  },
  {
    "id": "5100fe51-6bce-6j44-b0hs-bddc4e123683",
    "trigger": "metric",
    "name": "500 words written",
    "description": "Write 500 words in the app.",
    "badgeUrl": "https://example.com/badge.png",
    "metricId": "5100fe51-6bce-6j44-b0hs-bddc4e123683",
    "metricName": "words written",
    "metricValue": 500,
    "completions": 6,
    "completedPercentage": 60
  },
  {
    "id": "5100fe51-6bce-6j44-b0hs-bddc4e123684",
    "trigger": "streak",
    "name": "10 days of exercise",
    "description": "Exercise at least once a day for 10 days in a row.",
    "badgeUrl": "https://example.com/badge.png",
    "streakLength": 10,
    "completions": 2,
    "completedPercentage": 20
  }
]