Problem

cfl page view <id> -o json returns spaceId (numeric) but not the space key. Other commands like cfl page create require the space key (--space), not the ID.

This makes it difficult to create sibling/child pages when you know the parent page ID but not the space key. You have to cross-reference with cfl space list or cfl search to find the key, but:

• space list doesn't paginate (see related issue)
• search results show the space name but not the key

Reproduction:

# Returns spaceId but not spaceKey
cfl page view 12345 -o json
# Output: { "id": "12345", "spaceId": "9999999", ... }

# Need the key to create a child page, but can't get it from the page view
cfl page create --space ??? --parent 12345 --title "Child Page"

Expected

Include spaceKey in the page view JSON output:

{
  "id": "12345",
  "spaceId": "9999999",
  "spaceKey": "DEV",
  ...
}

Also, cfl search results should include the space key alongside the space name.