fix: config file parse errors not reported as missing DATABASE_URL

crates/config/src/loader.rs

@@ -98,6 +98,9 @@ pub fn load() -> Result<AppConfig, ConfigError> {
 
     let figment = Figment::new().merge(Toml::file(path)).merge(LegacyEnv);
 
+    figment
+        .data()
+        .map_err(|e| ConfigError::Unreadable(Box::new(e)))?;
     if figment.find_value("database.url").is_err() {
         return Err(ConfigError::Missing("DATABASE_URL"));
     }