Rates Engine v0.5.0-rc.14

[v0.5.0-rc.14] — 2026-05-06

Added

• /v1/coins?order_by=volume_24h_usd_desc — opt-in
  ranking by trailing-24h USD volume. Mirrors #765 for markets.
  Cursor format adapts to the active ordering. Default
  remains observation_count_desc (preserves the historical
  contract).
• /v1/coins/{slug}.top_markets — top 5 markets the
  asset participates in (as base or quote), ordered by 24h USD
  volume desc. Lets the explorer asset detail page render a
  Markets preview without a separate /v1/markets call. Each
  entry carries counterparty, side ("base" | "quote"),
  volume_24h_usd, trade_count_24h.
• /v1/issuers/{g_strkey}.org_name — parity with the
  listing endpoint. The listing extracts
  sep1_payload->>OrgName already; the single-issuer endpoint
  now does too. Explorer issuer detail page renders the org
  name as the <h1> when SEP-1 has been resolved.