Release v4928.1.4.2 stable

migrations/001_core_indexes.sql

@@ -0,0 +1,17 @@
+-- ClientFlow v4 migration 001: core operational indexes and migration ledger.
+CREATE EXTENSION IF NOT EXISTS pgcrypto;
+
+CREATE TABLE IF NOT EXISTS schema_migrations (
+    version TEXT PRIMARY KEY,
+    name TEXT NOT NULL,
+    applied_at TIMESTAMPTZ NOT NULL DEFAULT now()
+);
+
+CREATE INDEX IF NOT EXISTS idx_outbox_target_status_created
+ON integration_outbox(target_system, status, created_at DESC);
+
+CREATE INDEX IF NOT EXISTS idx_outbox_status_created
+ON integration_outbox(status, created_at DESC);
+
+CREATE INDEX IF NOT EXISTS idx_raw_events_source_created
+ON raw_events(source_system, created_at DESC);