Run batches and import JSON or CSV through the API

Each operation is dispatched as a request of its own, so a batch is held to
the same validation and permissions as the calls it contains.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

routes/api.php

@@ -12,6 +12,7 @@ use App\Http\Controllers\Api\PublicApi\V1\ShowcaseController;
 use App\Http\Controllers\Api\PublicApi\V1\SiteController;
 use App\Http\Controllers\Api\PublicApi\V1\TelemetryController;
 use App\Http\Controllers\Api\V1\ApplicationController as AdminApplicationController;
+use App\Http\Controllers\Api\V1\BatchController;
 use App\Http\Controllers\Api\V1\CallController;
 use App\Http\Controllers\Api\V1\CategoryController;
 use App\Http\Controllers\Api\V1\ClientController;
@@ -246,6 +247,13 @@ Route::prefix('v1')->name('api.v1.')->group(function () {
 
         Route::get('reviews', [ReviewController::class, 'queue'])->name('reviews.queue');
 
+        // Several calls in one. Each operation is still its own request, with
+        // its own validation and permission check.
+        Route::post('batch', [BatchController::class, 'batch'])->name('batch');
+        Route::post('import/{resource}', [BatchController::class, 'import'])
+            ->whereIn('resource', array_keys(AdminContent::WITH_HISTORY))
+            ->name('import');
+
         // The panel's health screen, and what is left to translate.
         Route::get('health', [HealthController::class, 'index'])->name('health');
         Route::get('translations/pending', [HealthController::class, 'translations'])->name('translations.pending');