Update project pages and add DB browser

templates/base.html

@@ -687,6 +687,7 @@
         <a href="/process-cost" class="{% if request.url.path == '/process-cost' %}active{% endif %}">프로젝트 원가</a>
         <a href="/projects" class="{% if request.url.path == '/projects' %}active{% endif %}">프로젝트 정보</a>
         <a href="/wehago-compare" class="{% if request.url.path == '/wehago-compare' %}active{% endif %}">전표비교</a>
+        <a href="/db-browser" class="{% if request.url.path.startswith('/db') %}active{% endif %}">DB 조회</a>
         <div class="nav-spacer"></div>
         <button type="button" class="view-mode-switch" id="viewModeSwitch" data-mode="dual" aria-label="화면 구성 전환">
             <span class="label" id="viewModeSwitchLabel">듀얼</span>
@@ -775,6 +776,7 @@
         const lastChecked = document.getElementById("syncLastChecked");
         const serverTime = document.getElementById("syncServerTime");
         const dataVersion = document.getElementById("syncDataVersion");
+        if (!dot || !label || !sessionPill || !lastChecked || !serverTime || !dataVersion) return;
         let pageVersion = widget.dataset.dataVersion || "";
         const refreshUrl = widget.dataset.refreshUrl || window.location.href;
         const refreshMode = widget.dataset.refreshMode || "auto";