Rates Engine v0.5.0-rc.17

[v0.5.0-rc.17] — 2026-05-06

Fixed

• /v1/coins/XLM 500 regression on rc.16. The synthetic
  native-row builder (GetNativeCoinRow, PR #798) scanned
  the trades hypertable for WHERE ts >= now() - INTERVAL '7 days' AND (base_asset = 'native' OR quote_asset = 'native') to
  derive first_seen_ledger / last_seen_ledger /
  observation_count. On r1 that's millions of rows and was
  timing out under the existing Postgres lock-table pressure
  (SQLSTATE 53200). Replace with placeholder zeros for the
  ledger bounds and a cheap prices_1m row count for
  observation_count. XLM endpoint returns instantly again.

Added

• Issuer detail page: external explorer links. Adds a
  cross-reference panel under the auth flags pointing at
  stellar.expert and stellarchain.io for the issuer's account,
  plus a direct link to the issuer's stellar.toml when the
  home domain is known. Useful for verifying SEP-1 metadata
  out-of-band, or pulling the issuer's full operations history
  from a dedicated explorer.
• Home page: Top markets table. Sits between Top assets and
  Top movers — top 10 trading pairs by trailing-24h USD volume,
  each row deep-linking to the per-pair detail page at
  /markets/{base~quote}. Pulls /v1/markets?order_by= volume_24h_usd_desc. Complements the asset-centric Top assets
  / Top movers panels with a pair-centric view.
• Home page: 5-card network stats strip. Sits above the
  existing 3-column NetworkLivePanel grid showing the
  scale-of-the-network at a glance — total 24h USD volume,
  active markets count, asset directory size, exchange-class
  sources online, and live XLM price + 24h change. All cells
  fed by existing API endpoints (/v1/markets, /v1/coins,
  /v1/sources, /v1/diagnostics/cursors); no synthesised
  data, — rendered while loading.
• Cmd-K search: G-strkey + pair shortcut detection. Typing
  a 56-char Stellar G-strkey now surfaces a "→ Issuer detail"
  result that deep-links to /issuers/{g_strkey}. Typing a pair
  shortcut like XLM/USDC, XLM USDC, or XLM-USDC resolves
  the codes against the loaded coins set and surfaces a "→ Pair
  detail" result deep-linking to /markets/{base~quote}.
• /markets/{base~quote} per-pair detail page on the explorer.
  Static-export route enumerating the top 100 pairs by 24h USD
  volume at build time. Renders pair header (base/quote labels +
  current VWAP + 24h change derived from the chart), 24h hourly
  chart sparkline, last-50 trades feed (time / source / price /
  amounts), and a per-source breakdown bar chart showing which
  venue contributed how many of those trades. Markets table rows
  on /markets are now clickable links into the new detail page.
• Stablecoin "PEG USD/EUR/MXN/…" badge on /assets/{slug}.
  Recognises the well-known Stellar stablecoins by code (USDC,
  USDT, PYUSD, DAI, EURC, MXNe, BRZ, GBPC, etc.) and replaces
  the meaningless 0.00% / 0.05% change pills with a single
  honest "Pegged to X" indicator. Non-stablecoin assets still
  show the 1h/24h/7d change pills.