Merge pull request 'chore:新增 swagger-api-docs-completion change 規劃' (#14) from feature/health-endpoint into master

Reviewed-on: #14

routes/web.php

@@ -1,7 +1,40 @@
 <?php
 
+use Illuminate\Support\Facades\DB;
+use Illuminate\Support\Facades\Redis;
 use Illuminate\Support\Facades\Route;
 
+Route::get('/health', function () {
+    $checks = ['db' => false, 'redis' => false, 'cache' => false];
+
+    try {
+        DB::connection()->getPdo();
+        $checks['db'] = true;
+    } catch (\Throwable) {}
+
+    try {
+        Redis::ping();
+        $checks['redis'] = true;
+    } catch (\Throwable) {}
+
+    try {
+        cache()->put('health_check', 'ok', 5);
+        $checks['cache'] = cache()->get('health_check') === 'ok';
+    } catch (\Throwable) {}
+
+    $healthy = $checks['db'] && $checks['redis'] && $checks['cache'];
+
+    return response()->json([
+        'status'      => $healthy ? 'ok' : 'degraded',
+        'timestamp'   => now()->toIso8601String(),
+        'environment' => app()->environment(),
+        'php_version' => PHP_VERSION,
+        'laravel'     => app()->version(),
+        'memory_mb'   => round(memory_get_usage(true) / 1024 / 1024, 2),
+        'checks'      => $checks,
+    ], $healthy ? 200 : 503);
+});
+
 Route::get('/', function () {
     return view('welcome');
 });