Implement issue 1 search, order reuse and tracking

po_app/templates/index.html

@@ -11,6 +11,10 @@
 <div class="card tracking-dashboard" id="tracking-board">
   {% from 'tracking_macros.html' import progress, invoice, tasks, actions with context %}
   <div class="card-head"><div><h2>付款与交货待办</h2><p class="muted">先核对变更，再跟进付款与交货。同一订单可能出现在多个提醒中。</p></div><a href="{{ url_for('orders') }}">全部订单</a></div>
+  <div class="order-stage-links" aria-label="按订单进展查看">
+    {% for key in ['work_undelivered', 'work_invoice_due', 'work_completed'] %}<a class="order-stage {{ 'selected' if tracking_key == key else '' }}" data-stage="{{ key }}" href="{{ url_for('index', tracking=key) }}#tracking-board"><b>{{ TRACKING_FILTERS[key] }}</b><span>{{ tracking_counts[key] }} 单 →</span></a>{% endfor %}
+  </div>
+  <p class="muted">交货、收票或付款未登记，以及变更后待核对的订单，可在 <a href="{{ url_for('index', tracking='work_other') }}#tracking-board">其他待跟进（{{ tracking_counts['work_other'] }}）</a>查看。</p>
   <div class="stat-row tracking-focus">
     {% for key in ['prepayment','invoice_due','paid_undelivered','recheck'] %}
     <a class="stat tracking-stat focus-{{ key }} {{ 'selected' if tracking_key == key else '' }}" data-tracking="{{ key }}" href="{{ url_for('index', tracking=key) }}#tracking-board"><div class="v">{{ tracking_counts[key] }}</div><div class="k">{{ TRACKING_FILTERS[key] }}</div><span class="stat-arrow" aria-hidden="true">→</span></a>