refactor(config)!: Setup for expanding lua config return

Moves the application config out of automation_lib and sets up the
config return type for further expansion.

src/config.rs

@@ -1,9 +1,10 @@
 use std::collections::HashMap;
+use std::net::{Ipv4Addr, SocketAddr};
 
 use serde::Deserialize;
 
 #[derive(Debug, Deserialize)]
-pub struct Config {
+pub struct Setup {
     #[serde(default = "default_entrypoint")]
     pub entrypoint: String,
     #[serde(default)]
@@ -15,3 +16,30 @@ pub struct Config {
 fn default_entrypoint() -> String {
     "./config.lua".into()
 }
+
+#[derive(Debug, Deserialize)]
+pub struct FulfillmentConfig {
+    pub openid_url: String,
+    #[serde(default = "default_fulfillment_ip")]
+    pub ip: Ipv4Addr,
+    #[serde(default = "default_fulfillment_port")]
+    pub port: u16,
+}
+
+#[derive(Debug, Deserialize)]
+pub struct Config {
+    pub fulfillment: FulfillmentConfig,
+}
+
+impl From<FulfillmentConfig> for SocketAddr {
+    fn from(fulfillment: FulfillmentConfig) -> Self {
+        (fulfillment.ip, fulfillment.port).into()
+    }
+}
+fn default_fulfillment_ip() -> Ipv4Addr {
+    [0, 0, 0, 0].into()
+}
+
+fn default_fulfillment_port() -> u16 {
+    7878
+}