개발언어 워크플로 힌트와 문서 품질 출력 경로를 고도화한다

- CodeLanguageCatalog에 manifest/build/test/lint 조회 API와 workflow summary 조합기를 추가해 no-LSP fallback과 컨텍스트 생성이 같은 힌트 소스를 재사용하도록 정리한다.

- WorkspaceContextGenerator에 Language Workflow 섹션을 추가해 상위 언어의 실행 힌트를 .ax-context.md에 기록하고, HtmlSkill/ExcelSkill은 공통 ArtifactQualityOutputFormatter로 품질 요약과 repair guide를 일관되게 출력하도록 맞춘다.

- README.md, docs/DEVELOPMENT.md, docs/NEXT_ROADMAP.md를 2026-04-15 09:49 (KST) 기준으로 갱신하고, CodeLanguageCatalogTests 및 WorkspaceContextGeneratorTests를 확장해 빌드 경고 0/오류 0과 관련 테스트 35건 통과를 확인한다.

src/AxCopilot/Services/CodeLanguageCatalog.cs

@@ -380,6 +380,72 @@ public static class CodeLanguageCatalog
         sb.Append(BuildLspSupportDescription());
         return sb.ToString();
     }
+    public static IReadOnlyList<string> GetManifestHints(string? key)
+    {
+        var normalizedKey = FindByKey(key)?.Key;
+        if (string.IsNullOrWhiteSpace(normalizedKey))
+            return [];
+
+        return s_manifestHints.TryGetValue(normalizedKey, out var hints)
+            ? hints
+            : [];
+    }
+
+    public static IReadOnlyList<string> GetBuildHints(string? key)
+    {
+        var normalizedKey = FindByKey(key)?.Key;
+        if (string.IsNullOrWhiteSpace(normalizedKey))
+            return [];
+
+        return s_buildHints.TryGetValue(normalizedKey, out var hints)
+            ? hints
+            : [];
+    }
+
+    public static IReadOnlyList<string> GetTestHints(string? key)
+    {
+        var normalizedKey = FindByKey(key)?.Key;
+        if (string.IsNullOrWhiteSpace(normalizedKey))
+            return [];
+
+        return s_testHints.TryGetValue(normalizedKey, out var hints)
+            ? hints
+            : [];
+    }
+
+    public static IReadOnlyList<string> GetLintHints(string? key)
+    {
+        var normalizedKey = FindByKey(key)?.Key;
+        if (string.IsNullOrWhiteSpace(normalizedKey))
+            return [];
+
+        return s_lintHints.TryGetValue(normalizedKey, out var hints)
+            ? hints
+            : [];
+    }
+
+    public static string BuildWorkflowSummary(string? key, int maxHintsPerKind = 2)
+    {
+        var capability = FindByKey(key);
+        if (capability == null)
+            return string.Empty;
+
+        var parts = new List<string>();
+        AppendHintBlock(parts, "manifests", GetManifestHints(capability.Key), maxHintsPerKind);
+        AppendHintBlock(parts, "build", GetBuildHints(capability.Key), maxHintsPerKind);
+        AppendHintBlock(parts, "test", GetTestHints(capability.Key), maxHintsPerKind);
+        AppendHintBlock(parts, "lint", GetLintHints(capability.Key), maxHintsPerKind);
+
+        var primaryGuidance = capability.Guidance.FirstOrDefault();
+        if (!string.IsNullOrWhiteSpace(primaryGuidance))
+            parts.Add("focus: " + primaryGuidance);
+
+        if (parts.Count == 0)
+            return capability.DisplayName;
+
+        return $"{capability.DisplayName}: {string.Join(" | ", parts)}";
+    }
+
     public static string BuildFallbackSupportDescription()
         => "LSP 서버가 없거나 연결되지 않아도 확장자, 매니페스트, build/test/lint 힌트 기반의 정적 분석을 계속 제공합니다.";
 
@@ -417,4 +483,19 @@ public static class CodeLanguageCatalog
 
         return sb.ToString().TrimEnd();
     }
+
+    private static void AppendHintBlock(List<string> parts, string label, IReadOnlyList<string> hints, int maxHintsPerKind)
+    {
+        if (hints.Count == 0)
+            return;
+
+        var limited = hints
+            .Where(hint => !string.IsNullOrWhiteSpace(hint))
+            .Take(Math.Max(1, maxHintsPerKind))
+            .ToList();
+        if (limited.Count == 0)
+            return;
+
+        parts.Add($"{label}: {string.Join(", ", limited)}");
+    }
 }