Stellar Index v0.40.1

[v0.40.1] — 2026-08-24

Fixed

• /v1/price p95 tail eliminated: the serving pool now forces custom
  plans (plan_cache_mode=force_custom_plan post-connect). Root cause:
  Postgres flipped the request path's raw-trades fallback to a generic
  plan whose build costs ~206 ms across the ~870-chunk trades hypertable
  and is rebuilt on every plancache invalidation (~1/min) — a steady
  ~5 % of serving binds paid 250–330 ms. Custom plans bind in 0.2–3 ms.
  Background/ops pools keep the default plan mode.
• Stuck-upstream FX rejections no longer hold the alert red: after 12
  consecutive refusals of the SAME broken history bar (the Massive
  ETB=44 case) repeats reclassify to history_deviation_stuck, excluded
  from the alert; fresh disagreement still alerts immediately. The guard
  refuses the bar either way.
• Explorer: navigation revised into Stellar / External / Developers
  sections, Stellar-mark + Inter wordmark logo with the live ledger
  number beside it, new /insights hub, /network sub-surface links.

No migrations.