Fix contract linkage and persist related project groups

templates/index.html

@@ -431,6 +431,35 @@
         </div>
     </section>
 
+    <section class="panel">
+        <div class="section-title">
+            <h2>계약·청구 동기화 현황</h2>
+            <p>계약현황 / 기성청구현황 파일 기준</p>
+        </div>
+        <div class="stats">
+            <div class="stat-card">
+                <div class="label">계약 프로젝트</div>
+                <div class="value">{{ import_sync_summary.contract_project_count or 0 }}</div>
+            </div>
+            <div class="stat-card">
+                <div class="label">청구 프로젝트</div>
+                <div class="value">{{ import_sync_summary.billing_project_count or 0 }}</div>
+            </div>
+            <div class="stat-card">
+                <div class="label">청구 행 수</div>
+                <div class="value">{{ import_sync_summary.billing_entry_count or 0 }}</div>
+            </div>
+            <div class="stat-card">
+                <div class="label">변경계약 검토</div>
+                <div class="value">{{ import_sync_summary.review_needed_count or 0 }}</div>
+            </div>
+            <div class="stat-card">
+                <div class="label">청구 수금합계</div>
+                <div class="value">{{ "{:,.0f}".format(import_sync_summary.total_collected_amount or 0) }}</div>
+            </div>
+        </div>
+    </section>
+
     <section class="two-col">
         <div class="stack">
             <section class="panel">