Add LOT API v1 endpoint with full batch details

Route changed to /api/v1/{lot_number}. LotResource now includes
packing details, units_produced, quantity_g and recipe version.
CORS config added for public API access. README documents the
endpoint, example response and subdomain setup instructions.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

README.md

@@ -95,6 +95,80 @@ Rezepte sind versioniert und einem Produkt zugeordnet:
 
 ---
 
+## LOT-API
+
+Öffentliche JSON-API zur Rückverfolgung von Chargen. Kein Auth erforderlich.
+
+### Endpunkt
+
+```
+GET https://api.sms.spices.blue/api/v1/{lot_number}
+```
+
+### Beispiel-Antwort
+
+```json
+{
+  "data": {
+    "lot_number": "LOT-2024-001",
+    "produced_at": "2024-10-01",
+    "expires_at":  "2026-10-01",
+    "units_produced": 50,
+    "quantity_g": 5000,
+    "product": {
+      "name": "Curry Klassik",
+      "description": "..."
+    },
+    "packing": {
+      "name": "Standbodenbeutel",
+      "size_g": 100,
+      "sku": "CUR-100",
+      "gtin": "4012345678901"
+    },
+    "recipe": {
+      "version": 3,
+      "created_at": "2024-09-15"
+    },
+    "spices": [
+      {
+        "name": "Kurkuma",
+        "percentage": 60.0,
+        "origin": {
+          "country": "Indien",
+          "farmer": "Singh Farm",
+          "supplier": "Gewürzhandel GmbH",
+          "notes": null
+        }
+      }
+    ]
+  }
+}
+```
+
+Fehler (nicht gefunden):
+```json
+{ "error": "LOT-Nummer nicht gefunden." }
+```
+
+### Subdomain-Setup auf dem Server
+
+Der Container läuft intern auf `127.0.0.1:5000`. Der Host-Proxy (Nginx/Caddy) muss `api.sms.spices.blue` auf denselben Port zeigen — Beispiel für Nginx:
+
+```nginx
+server {
+    server_name api.sms.spices.blue;
+    location / {
+        proxy_pass http://127.0.0.1:5000;
+        proxy_set_header Host $host;
+        proxy_set_header X-Real-IP $remote_addr;
+    }
+}
+```
+
+Danach SSL via `certbot --nginx -d api.sms.spices.blue` erneuern.
+
+---
+
 ## Cronjob
 
 Auf dem Server einrichten, damit der Laravel-Scheduler läuft:
@@ -198,4 +272,5 @@ Table batch_origins {
 - [x] Shopify-Import (Produkte, Varianten, Lagerbestand, Bilder, Beschreibung, Preise)
 - [x] Continuous Deployment via Gitea Actions + Docker
 - [x] Frontend (Sidebar, Navigation, Barcode-Preview, Bild-Grid)
+- [x] LOT-API (JSON, öffentlich, Subdomain api.sms.spices.blue)
 - [ ] Dashboard (Füllstände, Lager, Sales-Zeitspanne)

app/Http/Controllers/Api/LotController.php

@@ -13,6 +13,7 @@ class LotController extends Controller
     {
         $batch = Batch::with([
             'product',
+            'size.packing',
             'recipe.spices',
             'origins.spice',
             'origins.supplier',

app/Http/Resources/LotResource.php

@@ -10,15 +10,24 @@ class LotResource extends JsonResource
     public function toArray(Request $request): array
     {
         return [
-            'lot_number'  => $this->lot_number,
+            'lot_number'     => $this->lot_number,
-            'produced_at' => $this->produced_at?->toDateString(),
+            'produced_at'    => $this->produced_at?->toDateString(),
-            'expires_at'  => $this->expires_at?->toDateString(),
+            'expires_at'     => $this->expires_at?->toDateString(),
+            'units_produced' => $this->units_produced,
+            'quantity_g'     => (float) $this->quantity_g,
             'product' => [
                 'name'        => $this->product->title,
                 'description' => $this->product->description,
             ],
+            'packing' => $this->size ? [
+                'name'    => $this->size->packing->name,
+                'size_g'  => (float) $this->size->packing->size,
+                'sku'     => $this->size->sku,
+                'gtin'    => $this->size->gtin,
+            ] : null,
             'recipe' => [
-                'name' => $this->recipe->name,
+                'version'    => $this->recipe->version,
+                'created_at' => $this->recipe->created_at->toDateString(),
             ],
             'spices' => $this->recipe->spices->map(function ($spice) {
                 $origin = $this->origins->firstWhere('spice_id', $spice->id);

config/cors.php

@@ -0,0 +1,19 @@
+<?php
+
+return [
+    'paths' => ['api/*'],
+
+    'allowed_methods' => ['GET'],
+
+    'allowed_origins' => ['*'],
+
+    'allowed_origins_patterns' => [],
+
+    'allowed_headers' => ['Content-Type', 'Accept'],
+
+    'exposed_headers' => [],
+
+    'max_age' => 86400,
+
+    'supports_credentials' => false,
+];

routes/api.php

@@ -5,8 +5,8 @@ use App\Http\Controllers\ShopifyWebhookController;
 use App\Http\Middleware\VerifyShopifyWebhook;
 use Illuminate\Support\Facades\Route;
 
-Route::get('/lot/{lot_number}', [LotController::class, 'show'])
+Route::get('/v1/{lot_number}', [LotController::class, 'show'])
-    ->middleware('throttle:30,1')
+    ->middleware('throttle:60,1')
     ->name('api.lot');
 
 Route::post('/webhooks/shopify/orders-paid', [ShopifyWebhookController::class, 'ordersPaid'])