feat(front): 官网套餐页提交开通意向线索（PlatformLead）

routes/web.php

@@ -41,6 +41,9 @@ Route::get('/wechat/mini', [MiniProgramController::class, 'index']);
 Route::prefix('platform')->group(function () {
     Route::get('/', [FrontPlatformController::class, 'index']);
     Route::get('/plans', [FrontPlatformController::class, 'plans']);
+
+    // A：站点开通型前期先用“线索/开通意向”承接（后续再接自助开通/下单）
+    Route::post('/leads', [\App\Http\Controllers\Front\PlatformLeadController::class, 'store']);
 });
 
 Route::get('/health', function () {