chore: initial public snapshot for github upload

llm-gateway-competitors/sub2api-tar/backend/migrations/036_scheduler_outbox.sql

@@ -0,0 +1,10 @@
+CREATE TABLE IF NOT EXISTS scheduler_outbox (
+    id BIGSERIAL PRIMARY KEY,
+    event_type TEXT NOT NULL,
+    account_id BIGINT NULL,
+    group_id BIGINT NULL,
+    payload JSONB NULL,
+    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
+);
+
+CREATE INDEX IF NOT EXISTS idx_scheduler_outbox_created_at ON scheduler_outbox (created_at);