feat: add backoff_gas_multiplier_cap_pct to fortuna config

Co-Authored-By: Jayant Krishnamurthy <[email protected]>

Author: devin-ai-integration[bot]

apps/fortuna/config.sample.yaml

@@ -9,6 +9,9 @@ chains:
     # Increase the transaction gas limit by 10% each time the callback fails
     # defaults to 100 (i.e., don't change the gas limit) if not specified.
     backoff_gas_multiplier_pct: 110
+    # Maximum percentage that the gas limit can be multiplied by during backoff retries
+    # defaults to 500 (i.e., up to 5x the original gas limit) if not specified.
+    backoff_gas_multiplier_cap_pct: 500
     min_keeper_balance: 100000000000000000
 
     # Provider configuration

apps/fortuna/src/config.rs

@@ -174,6 +174,15 @@ pub struct EthereumConfig {
     /// The percentage multiplier to apply to the priority fee (100 = no change, e.g. 150 = 150% of base fee)
     #[serde(default = "default_priority_fee_multiplier_pct")]
     pub priority_fee_multiplier_pct: u64,
+
+    /// The maximum percentage that the gas limit can be multiplied by during backoff retries
+    /// For example, 500 means the gas limit can be increased up to 500% of the original estimate
+    #[serde(default = "default_backoff_gas_multiplier_cap_pct")]
+    pub backoff_gas_multiplier_cap_pct: u64,
+}
+
+fn default_backoff_gas_multiplier_cap_pct() -> u64 {
+    500  // Default to 500% (5x) maximum gas multiplier
 }
 
 fn default_backoff_gas_multiplier_pct() -> u64 {