fix: add serde default to missing katana options

crates/katana/cli/src/options.rs

@@ -25,6 +25,7 @@ use crate::utils::{parse_block_hash_or_number, parse_genesis, LogFormat};
 const DEFAULT_DEV_SEED: &str = "0";
 const DEFAULT_DEV_ACCOUNTS: u16 = 10;
 
+#[cfg(feature = "server")]
 #[derive(Debug, Args, Clone, Serialize, Deserialize, PartialEq)]
 #[command(next_help_heading = "Metrics options")]
 pub struct MetricsOptions {
@@ -33,18 +34,21 @@ pub struct MetricsOptions {
     /// For now, metrics will still be collected even if this flag is not set. This only
     /// controls whether the metrics server is started or not.
     #[arg(long)]
+    #[serde(default)]
     pub metrics: bool,
 
     /// The metrics will be served at the given address.
     #[arg(requires = "metrics")]
     #[arg(long = "metrics.addr", value_name = "ADDRESS")]
     #[arg(default_value_t = DEFAULT_METRICS_ADDR)]
+    #[serde(default = "default_metrics_addr")]
     pub metrics_addr: IpAddr,
 
     /// The metrics will be served at the given port.
     #[arg(requires = "metrics")]
     #[arg(long = "metrics.port", value_name = "PORT")]
     #[arg(default_value_t = DEFAULT_METRICS_PORT)]
+    #[serde(default = "default_metrics_port")]
     pub metrics_port: u16,
 }
 
@@ -77,6 +81,7 @@ pub struct ServerOptions {
     /// Comma separated list of domains from which to accept cross origin requests.
     #[arg(long = "http.cors_origins")]
     #[arg(value_delimiter = ',')]
+    #[serde(default)]
     pub http_cors_origins: Option<Vec<String>>,
 
     /// Maximum number of concurrent connections allowed.
@@ -133,6 +138,7 @@ pub struct EnvironmentOptions {
     /// ASCII values. It must be a valid Cairo short string.
     #[arg(long)]
     #[arg(value_parser = ChainId::parse)]
+    #[serde(default)]
     pub chain_id: Option<ChainId>,
 
     /// The maximum number of steps available for the account validation logic.
@@ -349,3 +355,13 @@ fn default_http_port() -> u16 {
 fn default_max_connections() -> u32 {
     DEFAULT_RPC_MAX_CONNECTIONS
 }
+
+#[cfg(feature = "server")]
+fn default_metrics_addr() -> IpAddr {
+    DEFAULT_METRICS_ADDR
+}
+
+#[cfg(feature = "server")]
+fn default_metrics_port() -> u16 {
+    DEFAULT_METRICS_PORT
+}