Get Proposal By Id

curl --request GET \
  --url https://api.example.com/v1/proposals/{proposal_id}

{
  "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "team_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "agent_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "genome_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "genome_version": 123,
  "status": "<string>",
  "created_at": 123,
  "trigger_summary": "",
  "mutations": [],
  "pre_fitness": {},
  "post_fitness": {},
  "fitness_delta": {},
  "net_fitness_delta": 123,
  "reviewed_at": 123,
  "reviewed_by": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "reviewer_notes": "<string>",
  "engine_name": "<string>",
  "extra": {}
}