Add product carousel module with template and database structure

- Created `pp_carousel.tpl` for rendering product carousel with Swiper integration.
- Added `plan.md` detailing module architecture, database schema, and implementation steps.
- Initialized log files for development and production environments.

modules/pp_carousel/views/templates/hook/pp_carousel.tpl

@@ -0,0 +1,67 @@
+<section class="pp-carousel" id="pp-carousel-{$ppc_id}">
+  <div class="pp-carousel__header">
+    {if $ppc_title}
+      <h2 class="pp-carousel__title">{$ppc_title|escape:'htmlall':'UTF-8'}</h2>
+    {/if}
+    {if $ppc_subtitle}
+      <div class="pp-carousel__subtitle">{$ppc_subtitle|escape:'htmlall':'UTF-8'}</div>
+    {/if}
+  </div>
+
+  {if $ppc_products|count > 0}
+    <div class="pp-carousel__slider swiper">
+      <div class="swiper-wrapper">
+        {foreach from=$ppc_products item=product}
+          <div class="swiper-slide">
+            <article class="pp-carousel__card">
+              <a class="pp-carousel__image" href="{$product.url}" title="{$product.name|escape:'htmlall':'UTF-8'}">
+                {if isset($product.cover.bySize.home_default.url)}
+                  <img src="{$product.cover.bySize.home_default.url}"
+                       alt="{$product.name|escape:'htmlall':'UTF-8'}"
+                       loading="lazy"
+                       width="300" height="300">
+                {elseif isset($product.cover.large.url)}
+                  <img src="{$product.cover.large.url}"
+                       alt="{$product.name|escape:'htmlall':'UTF-8'}"
+                       loading="lazy">
+                {/if}
+
+                {if isset($product.category_name) && $product.category_name}
+                  <span class="pp-carousel__label">{$product.category_name|escape:'htmlall':'UTF-8'}</span>
+                {/if}
+              </a>
+
+              <div class="pp-carousel__meta">
+                <a class="pp-carousel__name" href="{$product.url}">
+                  {$product.name|escape:'htmlall':'UTF-8'}
+                </a>
+
+                {if isset($product.price) && $product.price}
+                  <div class="pp-carousel__price">
+                    {$product.price}
+                    {if $ppc_price_suffix}
+                      <span class="pp-carousel__priceSuffix">{$ppc_price_suffix|escape:'htmlall':'UTF-8'}</span>
+                    {/if}
+                  </div>
+                {/if}
+              </div>
+            </article>
+          </div>
+        {/foreach}
+      </div>
+
+      <div class="pp-carousel__nav">
+        <div class="pp-carousel__prev" aria-label="Poprzedni"></div>
+        <div class="pp-carousel__next" aria-label="Następny"></div>
+      </div>
+    </div>
+  {/if}
+
+  {if $ppc_button_label && $ppc_button_url}
+    <div class="pp-carousel__footer">
+      <a class="pp-carousel__more" href="{$ppc_button_url|escape:'htmlall':'UTF-8'}">
+        {$ppc_button_label|escape:'htmlall':'UTF-8'}
+      </a>
+    </div>
+  {/if}
+</section>