feat: Implement read cursor activity tracking and recent activity dashboard with context

app/Http/Controllers/DashboardController.php

@@ -0,0 +1,20 @@
+<?php
+
+namespace App\Http\Controllers;
+
+use App\Services\ActivityService;
+use Illuminate\Http\Request;
+use Inertia\Inertia;
+
+class DashboardController extends Controller
+{
+    public function index(Request $request, ActivityService $activityService)
+    {
+        $user = $request->user();
+        $unreadEntities = $activityService->getUnreadEntitiesGrouped($user);
+
+        return Inertia::render('Dashboard', [
+            'unreadEntities' => $unreadEntities,
+        ]);
+    }
+}

app/Http/Controllers/DynamicController.php

@@ -8,6 +8,8 @@ use Illuminate\Foundation\Auth\Access\AuthorizesRequests;
 use Illuminate\Http\Request;
 use Inertia\Inertia;
 
+use App\Services\ActivityService;
+
 class DynamicController extends Controller
 {
     use AuthorizesRequests;
@@ -44,10 +46,12 @@ class DynamicController extends Controller
     /**
      * Display the specified resource.
      */
-    public function show(Dynamic $dynamic)
+    public function show(Dynamic $dynamic, ActivityService $activityService)
     {
         $this->authorize('view', $dynamic);
 
+        $activityService->updateCursor(auth()->user(), $dynamic);
+
         $dynamic->load([
             'ledgers.media',
             'participants',

app/Http/Controllers/LedgerController.php

@@ -5,6 +5,7 @@ namespace App\Http\Controllers;
 use App\Http\Requests\StoreLedgerRequest;
 use App\Models\Dynamic;
 use App\Models\Ledger;
+use App\Services\ActivityService;
 use Illuminate\Http\Request;
 use Illuminate\Foundation\Auth\Access\AuthorizesRequests;
 use Inertia\Inertia;
@@ -53,10 +54,12 @@ class LedgerController extends Controller
     /**
      * Display the specified resource.
      */
-    public function show(Request $request, Dynamic $dynamic, Ledger $ledger)
+    public function show(Request $request, Dynamic $dynamic, Ledger $ledger, ActivityService $activityService)
     {
         $this->authorize('view', $ledger);
 
+        $activityService->updateCursor($request->user(), $ledger);
+
         $dynamic->load('chat', 'participants');
 
         $ledger->load([

app/Http/Middleware/HandleInertiaRequests.php

@@ -42,6 +42,14 @@ class HandleInertiaRequests extends Middleware
                 'user' => $request->user(),
             ],
             'sidebarOpen' => ! $request->hasCookie('sidebar_state') || $request->cookie('sidebar_state') === 'true',
+            'unreadNotificationsCount' => function () use ($request) {
+                if (! $request->user()) {
+                    return 0;
+                }
+                
+                $service = app(\App\Services\ActivityService::class);
+                return count($service->getUnreadEntitiesGrouped($request->user()));
+            },
         ];
     }
 }