docs: 196+ tools, 16 ecosystems (add ArXiv)
chore: refresh module docstring + userAgent for 2.8.1
feat: v2.3.0 — v280-network-smoke.mjs
feat: v2.3.0 — index.spec.ts
feat: v2.3.0 — v260-network-smoke.mjs
feat: v2.3.0 — v250-network-smoke.mjs
feat: v2.3.0 — catalog.spec.ts
feat: v2.3.0 — v240-network-smoke.mjs
feat: v2.3.0 — v230-network-smoke.mjs
docs(v2.2): verification counts