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>

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,
-            'produced_at' => $this->produced_at?->toDateString(),
-            'expires_at'  => $this->expires_at?->toDateString(),
+            'lot_number'     => $this->lot_number,
+            'produced_at'    => $this->produced_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);