Add a capability (/add )

The user wants to add <capability> to the existing Convex app. Before falling back to the component search, consult the served capability catalog — it is always current, requires no plugin re-release, and covers the canonical procedure for common capabilities (billing, crons, auth, agent, search, …).

Run from the project root.

Step 1 — consult the served capability catalog

B="https://basic-anteater-667.convex.site"
CAP="<capability>"   # the text after /add

# Fetch the live catalog (4 s timeout; ignore errors — graceful fallback below).
CAPS=$(curl -fsS --max-time 4 "$B/capabilities.json" 2>/dev/null || true)
echo "CAPS_RAW=$CAPS"