feat: add tracing throughout, HTTP TraceLayer, detailed error logs

crates/presentation/src/errors.rs

@@ -5,11 +5,20 @@ use domain::DomainError;
 pub fn map_error(e: DomainError) -> (StatusCode, Json<ErrorResponse>) {
     let (status, message) = match &e {
         DomainError::NotFound => (StatusCode::NOT_FOUND, "not found".to_string()),
-        DomainError::ValidationError(msg) => (StatusCode::BAD_REQUEST, msg.clone()),
-        DomainError::Unauthorized(msg) => (StatusCode::UNAUTHORIZED, msg.clone()),
-        DomainError::Forbidden(msg) => (StatusCode::FORBIDDEN, msg.clone()),
-        DomainError::InfrastructureError(_) => {
-            tracing::error!("{e}");
+        DomainError::ValidationError(msg) => {
+            tracing::debug!(error = msg, "validation error");
+            (StatusCode::BAD_REQUEST, msg.clone())
+        }
+        DomainError::Unauthorized(msg) => {
+            tracing::debug!(error = msg, "unauthorized");
+            (StatusCode::UNAUTHORIZED, msg.clone())
+        }
+        DomainError::Forbidden(msg) => {
+            tracing::warn!(error = msg, "forbidden");
+            (StatusCode::FORBIDDEN, msg.clone())
+        }
+        DomainError::InfrastructureError(detail) => {
+            tracing::error!(error = detail, "infrastructure error");
             (
                 StatusCode::INTERNAL_SERVER_ERROR,
                 "internal error".to_string(),

crates/presentation/src/routes/mod.rs

@@ -10,6 +10,7 @@ use axum::{
 use infra_wiring::CorsOrigins;
 use tower_http::cors::{Any, CorsLayer};
 use tower_http::services::{ServeDir, ServeFile};
+use tower_http::trace::TraceLayer;
 
 use crate::state::AppState;
 
@@ -37,6 +38,7 @@ pub fn build_router(state: AppState) -> Router<()> {
     Router::new()
         .nest("/api", api)
         .fallback_service(spa_service)
+        .layer(TraceLayer::new_for_http())
         .layer(cors)
         .with_state(state)
 }