wip(core): preserve local broad Core refactor + inventory service

Divergent development line off origin/main (11a811d): a broad refactor across
routes/services/models/app + a large integration_test expansion (+1000), plus an
untracked game-independent inventory query service and Docker files. Preserved
verbatim before moving the canonical Core checkout to the committed migration
trunk (66c88fb). Reconciling this refactor with the migration trunk is a separate
user decision; nothing here is lost.

src/routes/notifications.rs

@@ -7,7 +7,9 @@ use serde_json::{json, Value};
 use crate::{
     app::AppState,
     error::{AppError, AppResult},
-    services::{club as club_svc, notification as notif_svc, objective as obj_svc, profile as profile_svc},
+    services::{
+        club as club_svc, notification as notif_svc, objective as obj_svc, profile as profile_svc,
+    },
 };
 
 /// GET /notifications
@@ -92,14 +94,16 @@ pub async fn get_notifications(State(state): State<AppState>) -> AppResult<Json<
     // Use "type" key for compatibility with dashboard and existing tests.
     let all: Vec<Value> = persistent
         .iter()
-        .map(|n| json!({
-            "id": n.id,
-            "type": n.kind,
-            "title": n.title,
-            "body": n.body,
-            "is_read": n.is_read,
-            "created_at": n.created_at,
-        }))
+        .map(|n| {
+            json!({
+                "id": n.id,
+                "type": n.kind,
+                "title": n.title,
+                "body": n.body,
+                "is_read": n.is_read,
+                "created_at": n.created_at,
+            })
+        })
         .chain(dynamic.iter().cloned())
         .collect();
 
@@ -124,9 +128,7 @@ pub async fn mark_notification_read(
 }
 
 /// POST /notifications/read-all
-pub async fn mark_all_notifications_read(
-    State(state): State<AppState>,
-) -> AppResult<Json<Value>> {
+pub async fn mark_all_notifications_read(State(state): State<AppState>) -> AppResult<Json<Value>> {
     let count = notif_svc::mark_all_read(&state.pool).await?;
     Ok(Json(json!({ "marked_read": count })))
 }