Rates Engine v0.5.0-rc.104

[v0.5.0-rc.104] — 2026-06-01

Tested against Stellar Protocol 23 (Whisk).

Pre-deploy operator note: aggregator restart on r1 picks up the new per-source gap-detector targets. Migration 0048 (source_coverage_snapshots) was hand-applied during the incident and needs to be marked at version 48 in schema_migrations (already done on r1).

Fixed

• Coverage snapshot rows for Soroban-DEX sources.
  Post-ADR-0031 Phase 2 removed the cursor-derived density and
  routed /v1/diagnostics/ingestion's coverage listing through
  source_coverage_snapshots. The gap detector targets covered
  SDEX (via source = 'sdex' WhereFilter on trades) but not the
  Soroban-DEX sources (aquarius, soroswap, phoenix, comet) that
  also land in the unified trades hypertable. Result on r1
  2026-06-01: API reported 0% coverage for all four. Added the
  matching per-source targets with appropriate genesis ledgers
  and 100K-ledger sparsity overrides — matches the SDEX shape.