add bounds for minimum base fee in standard config (#1127)

Author: geoknee

validation/standard/standard-config-params-mainnet.toml

@@ -31,6 +31,7 @@ base_fee_scalar = [0, 10_000_000]
 gas_limit = [8_000_000, 200_000_000]
 operator_fee_scalar = [0, 0]
 operator_fee_constant = [0, 0]
+minmum_base_fee = [0, 10_000_000_000] # 10 Gwei
 
 [proofs.permissioned]
 game_type = 1