feat: Enhance equipment, maintenance, production, and simulation management interfaces

- Updated equipment.html to include scenario filtering, equipment addition form, and dynamic equipment listing.
- Enhanced maintenance.html with scenario filtering, maintenance entry form, and dynamic equipment selection.
- Improved production.html to allow scenario filtering and production output entry.
- Revamped reporting.html to display scenario KPI summaries with refresh functionality.
- Expanded simulations.html to support scenario selection, simulation run history, and detailed results display.
- Refactored base_header.html for improved navigation structure and active link highlighting.

templates/partials/base_header.html

@@ -1,17 +1,38 @@
-<header class="site-header">
-  <div class="container header-inner">
-    <h1 class="site-title">CalMiner</h1>
-    <nav class="site-nav" aria-label="Primary navigation">
-      <a href="/ui/dashboard">Dashboard</a>
-      <a href="/ui/scenarios">Scenarios</a>
-      <a href="/ui/parameters">Parameters</a>
-      <a href="/ui/costs">Costs</a>
-      <a href="/ui/consumption">Consumption</a>
-      <a href="/ui/production">Production</a>
-      <a href="/ui/equipment">Equipment</a>
-      <a href="/ui/maintenance">Maintenance</a>
-      <a href="/ui/simulations">Simulations</a>
-      <a href="/ui/reporting">Reporting</a>
-    </nav>
+{% set nav_links = [
+  ("/", "Dashboard"),
+  ("/ui/scenarios", "Scenarios"),
+  ("/ui/parameters", "Parameters"),
+  ("/ui/costs", "Costs"),
+  ("/ui/consumption", "Consumption"),
+  ("/ui/production", "Production"),
+  ("/ui/equipment", "Equipment"),
+  ("/ui/maintenance", "Maintenance"),
+  ("/ui/simulations", "Simulations"),
+  ("/ui/reporting", "Reporting"),
+] %}
+
+<div class="sidebar-inner">
+  <div class="sidebar-brand">
+    <span class="brand-logo" aria-hidden="true">CM</span>
+    <div class="brand-text">
+      <span class="brand-title">CalMiner</span>
+      <span class="brand-subtitle">Mining Planner</span>
+    </div>
   </div>
-</header>
+  <nav class="sidebar-nav" aria-label="Primary navigation">
+    {% set current_path = request.url.path if request else "" %}
+    {% for href, label in nav_links %}
+      {% if href == "/" %}
+        {% set is_active = current_path == "/" %}
+      {% else %}
+        {% set is_active = current_path.startswith(href) %}
+      {% endif %}
+      <a
+        href="{{ href }}"
+        class="sidebar-link{% if is_active %} is-active{% endif %}"
+      >
+        {{ label }}
+      </a>
+    {% endfor %}
+  </nav>
+</div>