add structured logging

src/types.rs

@@ -31,15 +31,12 @@ impl Default for Config {
 
 impl Config {
     pub fn load(path: &Path) -> anyhow::Result<Self> {
-        if path.exists() {
-            let contents = std::fs::read_to_string(path)?;
-            let config: Config = serde_json::from_str(&contents)?;
-            tracing::info!("Loaded config from {}", path.display());
-            Ok(config)
-        } else {
-            tracing::warn!("Config file {} not found, using defaults", path.display());
-            Ok(Self::default())
-        }
+        let contents = std::fs::read_to_string(path)
+            .map_err(|e| anyhow::anyhow!("Failed to read config file {}: {e}", path.display()))?;
+        let config: Config = serde_json::from_str(&contents)
+            .map_err(|e| anyhow::anyhow!("Failed to parse config file {}: {e}", path.display()))?;
+        tracing::info!("Loaded config from {}", path.display());
+        Ok(config)
     }
 }
 
@@ -179,6 +176,12 @@ pub struct SpeciesDto {
     pub label: String,
 }
 
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct LookupDto {
+    pub code: String,
+    pub label: String,
+}
+
 #[derive(Debug, Clone, Serialize, Deserialize)]
 pub struct LandingDto {
     pub month: String,