Add TrustProxies middleware to fix HTTPS detection behind Caddy

app/Http/Middleware/TrustProxies.php

@@ -0,0 +1,28 @@
+<?php
+
+namespace App\Http\Middleware;
+
+use Illuminate\Http\Middleware\TrustProxies as Middleware;
+use Illuminate\Http\Request;
+
+class TrustProxies extends Middleware
+{
+    /**
+     * The trusted proxies for this application.
+     *
+     * @var array<int, string>|string|null
+     */
+    protected $proxies = '*';
+
+    /**
+     * The headers that should be used to detect proxies.
+     *
+     * @var int
+     */
+    protected $headers =
+        Request::HEADER_X_FORWARDED_FOR |
+        Request::HEADER_X_FORWARDED_HOST |
+        Request::HEADER_X_FORWARDED_PORT |
+        Request::HEADER_X_FORWARDED_PROTO |
+        Request::HEADER_X_FORWARDED_AWS_ELB;
+}

bootstrap/app.php

@@ -11,6 +11,9 @@ return Application::configure(basePath: dirname(__DIR__))
         health: '/up',
     )
     ->withMiddleware(function (Middleware $middleware): void {
+        // Trust proxies for HTTPS detection
+        $middleware->trustProxies(at: '*');
+        
         $middleware->web(append: [
             \App\Http\Middleware\HandleInertiaRequests::class,
             \Illuminate\Http\Middleware\AddLinkHeadersForPreloadedAssets::class,