kxmeta-discover

@kxsystems

Discovering metadata on a running kdb+ process via `aimeta` — cold-start probing, the `/meta` HTTP route, `kx-meta discover`, qIPC fallback, and reading the `tier` / `references[]` fields in the response. Use when an agent needs to learn what tables and functions a kdb+ host exposes, when interpreting `kx-meta discover` output, when handling tier-1 fallback gracefully, or when walking `references[]` for vocabulary resolution. For the wire model and full `meta.json` shape see ../../reference/agent-guide.md.