refactor: 移除四所统计分析页交易日历

删除日历 UI、bootstrap 与 /api/stats/calendar 注册；保留日/周/月统计表。内照明心档案日历不受影响。

Co-authored-by: Cursor <cursoragent@cursor.com>

embed_templates/embed_page_fragment.html

@@ -452,17 +452,6 @@
                     </select>
                 </label>
             </div>
-            {% if stats_bundle.calendar_bootstrap_json %}
-            <script type="application/json" id="stats-calendar-bootstrap">{{ stats_bundle.calendar_bootstrap_json | safe }}</script>
-            {% endif %}
-            <div id="stats-calendar-wrap" class="trade-cal-wrap stats-calendar-wrap">
-                <div class="trade-cal-head">
-                    <button type="button" id="stats-cal-prev" class="btn" title="上一月">‹</button>
-                    <span id="stats-cal-title" class="trade-cal-title"></span>
-                    <button type="button" id="stats-cal-next" class="btn" title="下一月">›</button>
-                </div>
-                <div id="stats-calendar" class="trade-cal-grid-host" role="grid" aria-label="交易日历"></div>
-            </div>
             {% for seg in stats_bundle.segments %}
             <div class="stats-segment-block stats-segment-panel" data-stats-segment="{{ seg.key }}"{% if not loop.first %} style="display:none"{% endif %}>
                 {{ period_stats("日统计", seg.day) }}