문서 고도화 다음 단계를 반영해 XLSX·HTML·PPT 품질 게이트를 강화했습니다

핵심 수정사항:
- ExcelSkill summary_sheet에 trend_series를 추가해 Trend Dashboard 블록을 렌더링하고, workbook quality review가 dashboard형 summary 구성을 더 정확히 평가하도록 확장했습니다.
- HtmlSkill은 print=true인데 print_header/print_footer가 없는 경우 기본 print frame을 자동 생성하도록 보강했고, ArtifactQualityReviewService는 print-ready 문서의 frame/decision/evidence/cover 부족을 추가 경고로 반환합니다.
- DeckPlanningService는 comparison, roadmap, executive_summary, kpi_dashboard 슬라이드의 최소 구조를 자동 보정하고, DeckQualityReviewService는 slide-level quality gate를 추가해 긴 headline, 과밀 슬라이드, 옵션 부족, 표/차트 데이터 누락을 Slide N 경고로 요약합니다.
- DeckQualityReviewServiceTests, ExcelSkillDashboardSummaryTests, HtmlSkillPrintFrameTests를 확장해 회귀 검증을 강화했습니다.

검증 결과:
- dotnet build src/AxCopilot/AxCopilot.csproj -c Release -v minimal -p:OutputPath=bin\\verify_doc_next3\\ -p:IntermediateOutputPath=obj\\verify_doc_next3\\ : 경고 0 / 오류 0
- dotnet test src/AxCopilot.Tests/AxCopilot.Tests.csproj -c Release -v minimal --filter "DeckQualityReviewServiceTests|PptxSkillAutoRepairTests|PptxSkillConsultingDeckTests|ExcelSkillDashboardSummaryTests|ExcelSkillSummarySheetTests|HtmlSkillPrintFrameTests|HtmlSkillConsultingSectionsTests|ArtifactQualityReviewServiceTests" -p:OutputPath=bin\\verify_doc_next3_tests\\ -p:IntermediateOutputPath=obj\\verify_doc_next3_tests\\ : 통과 13

src/AxCopilot/Services/Agent/ExcelSkill.cs

@@ -309,7 +309,7 @@ public class ExcelSkill : IAgentTool
             true,
             HasSummaryItems(summarySheet, "highlights"),
             HasSummaryItems(summarySheet, "actions"),
-            HasSummaryItems(summarySheet, "scorecards") || HasSummaryItems(summarySheet, "cards") || HasSummaryItems(summarySheet, "kpis"),
+            HasSummaryItems(summarySheet, "scorecards") || HasSummaryItems(summarySheet, "cards") || HasSummaryItems(summarySheet, "kpis") || HasSummaryItems(summarySheet, "trend_series"),
             HasStructuredSummaryContent(summarySheet, "decision_summary"),
             HasSummaryItems(summarySheet, "sheet_summaries")));
         features += $"\n{review.ToToolSummary()}";
@@ -435,7 +435,7 @@ public class ExcelSkill : IAgentTool
             summarySheet.ValueKind == JsonValueKind.Object,
             HasSummaryItems(summarySheet, "highlights"),
             HasSummaryItems(summarySheet, "actions"),
-            HasSummaryItems(summarySheet, "scorecards") || HasSummaryItems(summarySheet, "cards") || HasSummaryItems(summarySheet, "kpis"),
+            HasSummaryItems(summarySheet, "scorecards") || HasSummaryItems(summarySheet, "cards") || HasSummaryItems(summarySheet, "kpis") || HasSummaryItems(summarySheet, "trend_series"),
             HasStructuredSummaryContent(summarySheet, "decision_summary"),
             HasSummaryItems(summarySheet, "sheet_summaries")));
         return ToolResult.Ok(
@@ -482,6 +482,7 @@ public class ExcelSkill : IAgentTool
 
         AppendDecisionSummarySection(summarySheet, sheetData, merges, ref rowIndex);
         AppendScorecardSection(summarySheet, sheetData, ref rowIndex);
+        AppendTrendSection(summarySheet, sheetData, ref rowIndex);
 
         if (summarySheet.SafeTryGetProperty("kpis", out var kpis) && kpis.ValueKind == JsonValueKind.Array && kpis.GetArrayLength() > 0)
         {
@@ -652,6 +653,38 @@ public class ExcelSkill : IAgentTool
         rowIndex++;
     }
 
+    private static void AppendTrendSection(JsonElement summarySheet, SheetData sheetData, ref uint rowIndex)
+    {
+        if (!summarySheet.SafeTryGetProperty("trend_series", out var trendSeries)
+            || trendSeries.ValueKind != JsonValueKind.Array
+            || trendSeries.GetArrayLength() == 0)
+            return;
+
+        var headerRow = new Row { RowIndex = rowIndex++ };
+        headerRow.Append(CreateSummaryCell("A", headerRow.RowIndex!.Value, "Trend Dashboard", 1));
+        headerRow.Append(CreateSummaryCell("B", headerRow.RowIndex!.Value, "Current", 1));
+        headerRow.Append(CreateSummaryCell("C", headerRow.RowIndex!.Value, "Target", 1));
+        headerRow.Append(CreateSummaryCell("D", headerRow.RowIndex!.Value, "Delta", 1));
+        headerRow.Append(CreateSummaryCell("E", headerRow.RowIndex!.Value, "Status", 1));
+        sheetData.Append(headerRow);
+
+        var trendIndex = 0;
+        foreach (var trend in trendSeries.EnumerateArray())
+        {
+            var row = new Row { RowIndex = rowIndex++ };
+            var stripeStyle = trendIndex % 2 == 0 ? (uint)0 : (uint)2;
+            row.Append(CreateSummaryCell("A", row.RowIndex!.Value, trend.SafeTryGetProperty("label", out var labelEl) ? labelEl.SafeGetString() ?? "" : "", 1));
+            row.Append(CreateSummaryCell("B", row.RowIndex!.Value, trend.SafeTryGetProperty("current", out var currentEl) ? currentEl.SafeGetString() ?? currentEl.ToString() : "", 3));
+            row.Append(CreateSummaryCell("C", row.RowIndex!.Value, trend.SafeTryGetProperty("target", out var targetEl) ? targetEl.SafeGetString() ?? targetEl.ToString() : "", stripeStyle));
+            row.Append(CreateSummaryCell("D", row.RowIndex!.Value, trend.SafeTryGetProperty("delta", out var deltaEl) ? deltaEl.SafeGetString() ?? deltaEl.ToString() : "", stripeStyle));
+            row.Append(CreateSummaryCell("E", row.RowIndex!.Value, trend.SafeTryGetProperty("status", out var statusEl) ? statusEl.SafeGetString() ?? "" : "", stripeStyle));
+            sheetData.Append(row);
+            trendIndex++;
+        }
+
+        rowIndex++;
+    }
+
     private static void AppendSummaryTextSection(JsonElement summarySheet, string key, string heading, SheetData sheetData, MergeCells merges, ref uint rowIndex)
     {
         if (!summarySheet.SafeTryGetProperty(key, out var items) || items.ValueKind != JsonValueKind.Array || items.GetArrayLength() == 0)