Initial Ladill Hosting app with Gitea deploy pipeline.

Shared web hosting extracted from the platform monolith, with CI deploy
to /var/www/ladill-hosting matching Bird/Domains/Email.

Co-authored-by: Cursor <cursoragent@cursor.com>

app/Http/Middleware/SetActingAccount.php

@@ -0,0 +1,38 @@
+<?php
+
+namespace App\Http\Middleware;
+
+use App\Models\User;
+use Closure;
+use Illuminate\Http\Request;
+use Illuminate\Support\Facades\View;
+use Symfony\Component\HttpFoundation\Response;
+
+/**
+ * Resolves the "acting account" (owner User) the request operates on. Defaults
+ * to the authenticated user; a team member who switched accounts (session
+ * ladill_account) gets that owner, after an access check. Exposed via request
+ * attribute (ladill_account()) and to views.
+ */
+class SetActingAccount
+{
+    public function handle(Request $request, Closure $next): Response
+    {
+        if ($user = $request->user()) {
+            $accountId = (int) $request->session()->get('ladill_account', $user->id);
+
+            if (! $user->canAccessAccount($accountId)) {
+                $accountId = $user->id;
+                $request->session()->put('ladill_account', $accountId);
+            }
+
+            $account = $accountId === $user->id ? $user : (User::find($accountId) ?? $user);
+
+            $request->attributes->set('actingAccount', $account);
+            View::share('actingAccount', $account);
+            View::share('accessibleAccounts', $user->accessibleAccounts());
+        }
+
+        return $next($request);
+    }
+}