List available hosting plans with pricing and resources.
No authentication needed.
Args:
track: Filter by plan track. Valid values: "single_site", "agency".
⚠ The track is not the site count — most plans on BOTH tracks
include several sites (site_starter 5, site_plus 8, site_pro 12).
Read `max_sites` on the plan, and use add_site() to fill a slot.
Leave empty to list all tracks.
include_deprecated: Include deprecated plans (default: false)
Returns:
[{"slug": "site_starter", "name": "Starter", "track": "single_site",
"hosting_type": "shared", "price": {"monthly": 5, "annual": 2, "currency": "CAD"},
"resources": null, "features": {"max_sites": 1, "ai_modules": [...],
"ai_agents": [], "free_domain_annual": false}}, ...]