[Feature] Server pagination implementation (#243)

## Major Changes
- Implement a REST style API app in epapi
- Currently implements a GET method for all entity types in the browse menu (both package level and global)
- Provides paginated results per default with query style filtering for reviewed vs unreviewed.
- Provides new paginated templates with thin wrappers per entity types for easier maintainability
- Implements e2e tests for the API

## Minor changes
- Added more comprehensive gitignore to cover coverage reports and other test/node.js etc. data.
- Add additional CI file for API tests that only gets triggered on API relevant changes.

## ⚠️ Currently only works with session-based authentication. Token based will be added in new PR.

Co-authored-by: Tim Lorsbach <tim@lorsba.ch>
Co-authored-by: jebus <lorsbach@envipath.com>
Reviewed-on: enviPath/enviPy#243
Co-authored-by: Tobias O <tobias.olenyi@envipath.com>
Co-committed-by: Tobias O <tobias.olenyi@envipath.com>

templates/collections/_paginated_list_partial.html

@@ -0,0 +1,98 @@
+{# Partial for paginated list content - expects to be inside a remotePaginatedList Alpine.js context #}
+{# Variables: empty_text (string), show_review_badge (bool), always_show_badge (bool) #}
+
+{# Loading state #}
+<div x-show="isLoading">{% include "components/loading-spinner.html" %}</div>
+
+{# Error state #}
+<div
+  x-show="!isLoading && error"
+  class="alert alert-error/50 text-sm"
+  x-text="error"
+></div>
+
+{# Content #}
+<template x-if="!isLoading && !error">
+  <div>
+    {# Empty state #}
+    <div
+      x-show="totalItems === 0"
+      class="text-base-content/70 py-8 text-center"
+    >
+      <p>No {{ empty_text|default:"items" }} found.</p>
+    </div>
+
+    {# Items list #}
+    <ul class="menu bg-base-100 rounded-box w-full" x-show="totalItems > 0">
+      <template x-for="obj in paginatedItems" :key="obj.url">
+        <li>
+          <a :href="obj.url" class="hover:bg-base-200">
+            <span x-text="obj.name"></span>
+            {% if show_review_badge %}
+              <span
+                class="tooltip tooltip-left ml-auto"
+                data-tip="Reviewed"
+                {% if not always_show_badge %}
+                  x-show="obj.review_status === 'reviewed'"
+                {% endif %}
+              >
+                <svg
+                  xmlns="http://www.w3.org/2000/svg"
+                  width="24"
+                  height="24"
+                  viewBox="0 0 24 24"
+                  fill="none"
+                  stroke="currentColor"
+                  stroke-width="2"
+                  stroke-linecap="round"
+                  stroke-linejoin="round"
+                  class="lucide lucide-check-icon lucide-check"
+                >
+                  <path d="M20 6 9 17l-5-5" />
+                </svg>
+              </span>
+            {% endif %}
+          </a>
+        </li>
+      </template>
+    </ul>
+
+    {# Pagination controls #}
+    <div
+      x-show="totalPages > 1"
+      class="mt-4 flex items-center justify-between px-2"
+    >
+      <span class="text-base-content/70 text-sm">
+        Showing <span x-text="showingStart"></span>-<span
+          x-text="showingEnd"
+        ></span>
+        of <span x-text="totalItems"></span>
+      </span>
+      <div class="join">
+        <button
+          class="join-item btn btn-sm"
+          :disabled="currentPage === 1"
+          @click="prevPage()"
+        >
+          «
+        </button>
+        <template x-for="item in pageNumbers" :key="item.key">
+          <button
+            class="join-item btn btn-sm"
+            :class="{ 'btn-active': item.page === currentPage }"
+            :disabled="item.isEllipsis"
+            @click="!item.isEllipsis && goToPage(item.page)"
+            x-text="item.page"
+          ></button>
+        </template>
+        <button
+          class="join-item btn btn-sm"
+          :disabled="currentPage === totalPages"
+          @click="nextPage()"
+        >
+          »
+        </button>
+      </div>
+    </div>
+  </div>
+</template>