feat: .NET 운영 리포트 렌더러와 CI 경로 전환

- operational_report.json/md와 final_decision_packet_v4 생성 경로를 .NET으로 전환했습니다.
- CI, 운영 게이트, 릴리스 DAG, 대시보드의 운영 진입점을 새 경로로 정렬했습니다.
- legacy Python 렌더러는 비운영으로 명시했습니다.

src/dotnet/QuantEngine.Web/Program.cs

@@ -2,6 +2,8 @@ using QuantEngine.Web.Components;
 using QuantEngine.Infrastructure.Data;
 using QuantEngine.Infrastructure.Repositories;
 using QuantEngine.Core.Interfaces;
+using QuantEngine.Application.Services;
+using System.Text.Json;
 using MudBlazor.Services;
 
 var builder = WebApplication.CreateBuilder(args);
@@ -18,6 +20,9 @@ var connectionString = builder.Configuration.GetConnectionString("DefaultConnect
     ?? "Host=127.0.0.1;Database=giteadb;Username=gitea;Password=C8RFlZ9fdQrBA1vyLhLDS4v70I8dJfRS2ERJW4+zsS4=;Search Path=quantengine;";
 builder.Services.AddSingleton<IDbConnectionFactory>(new DbConnectionFactory(connectionString));
 builder.Services.AddScoped<IWorkspaceRepository, WorkspaceRepository>();
+builder.Services.AddScoped<IPostgresqlHistoryStore, PostgresqlHistoryStore>();
+builder.Services.AddScoped<IPostgresqlHistorySnapshotReader, PostgresqlHistorySnapshotReader>();
+builder.Services.AddScoped<HistoryIngestionService>();
 builder.Services.AddHttpClient();
 
 var app = builder.Build();
@@ -40,5 +45,48 @@ app.MapStaticAssets();
 app.MapRazorComponents<App>()
     .AddInteractiveServerRenderMode();
 
+app.MapGet("/api/history/{domain}", async (string domain, int? limit, IPostgresqlHistorySnapshotReader reader) =>
+{
+    var rows = await reader.ReadAsync(domain, limit ?? 500);
+    return Results.Ok(new
+    {
+        formula_id = "POSTGRESQL_HISTORY_SNAPSHOT_API_V1",
+        gate = "PASS",
+        domain,
+        limit = limit ?? 500,
+        rows
+    });
+});
+
+app.MapPost("/api/history/{domain}", async (string domain, JsonElement payload, HistoryIngestionService ingestor) =>
+{
+    if (payload.ValueKind != JsonValueKind.Object)
+    {
+        return Results.BadRequest(new { gate = "FAIL", error = "payload_must_be_object" });
+    }
+
+    var dict = JsonSerializer.Deserialize<Dictionary<string, object?>>(payload.GetRawText())
+              ?? new Dictionary<string, object?>();
+    var affected = domain switch
+    {
+        "decision_result_history" => await ingestor.AppendDecisionAsync(dict),
+        "factor_output_history" => await ingestor.AppendFactorOutputAsync(dict),
+        "market_raw_history" => await ingestor.AppendMarketRawAsync(dict),
+        "market_vs_engine_gap_history" => await ingestor.AppendGapAsync(dict),
+        _ => -1
+    };
+    if (affected < 0)
+    {
+        return Results.BadRequest(new { gate = "FAIL", error = "unsupported_domain" });
+    }
+    return Results.Ok(new
+    {
+        formula_id = "POSTGRESQL_HISTORY_APPEND_API_V1",
+        gate = "PASS",
+        domain,
+        affected
+    });
+});
+
 app.Run();