LumAgg on-chain activity

Aggregator contract invocations only — volume LumAgg routed onto Stellar Soroban DEXes, not market-wide pool volume. Routed volume sums the actual input value processed by every executed DEX leg. Split routes use each pool's real allocation; multi-hop and round-trip legs are priced in their own input token (XLM = historical daily reference; USDC = $1). Only priced actual amounts are included; missing data is not estimated.