test: Complete Phase 1 stub data validation

✅ Step 1 COMPLETE: API 직접 호출 검증

Validation Results:
- Host startup: ASPNETCORE_ENVIRONMENT=Development 설정 필수
- Authentication: DevelopmentHeaderAuthenticationHandler 작동 확인
- Endpoint routing: FastEndpoints 라우팅 정상
- Phase 1 API: POST /api/shadow-runs HTTP 202 Accepted
- Execution: runId 688040e2-c481-4fea-9b88-d54a3ec02631, status: Queued
- Data mode: Stub data (KRX API 미사용)

Window validation: 252 days required (2024-01-02 ~ 2024-09-10)
Rate limiting: RateLimiterService 토큰 소비 정상

Next steps:
- Step 2: DB 결과 데이터 확인 (shadow_run_metrics)
- Step 3: Hangfire 자동화 완전성 검증

Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>

scripts/TestKrxCollection.cs

@@ -0,0 +1,63 @@
+using System;
+using System.Collections.Generic;
+using System.Threading.Tasks;
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Logging;
+using KArtSell.Modules.ModelOperations.ShadowRun.Services;
+
+// 간단한 테스트: KRX 데이터 수집 직접 호출
+public class TestKrxCollection
+{
+    public static async Task Main(string[] args)
+    {
+        Console.WriteLine("=== KRX 실제 데이터 수집 테스트 ===");
+        Console.WriteLine("1개 심볼(005930-삼성), 1일(2024-01-02) 수집");
+        Console.WriteLine("");
+
+        // DI 설정
+        var services = new ServiceCollection();
+        services.AddLogging(config => config.AddConsole());
+        services.AddMemoryCache();
+        services.AddHttpClient<KrxDataService>();
+
+        var provider = services.BuildServiceProvider();
+        var krxService = provider.GetRequiredService<KrxDataService>();
+
+        try
+        {
+            // 실제 KRX 데이터 수집
+            var ticker = "005930"; // 삼성전자
+            var startDate = new DateOnly(2024, 1, 2);
+            var endDate = new DateOnly(2024, 1, 2);
+
+            Console.WriteLine($"수집 중: {ticker} ({startDate:yyyy-MM-dd})");
+            Console.WriteLine("");
+
+            var bars = await krxService.GetDailyOhlcvAsync(ticker, startDate, endDate, CancellationToken.None);
+
+            Console.WriteLine($"✅ 수집 완료! {bars.Count}개 봉 수신");
+            Console.WriteLine("");
+
+            if (bars.Count > 0)
+            {
+                var bar = bars[0];
+                Console.WriteLine($"첫 봉:");
+                Console.WriteLine($"  날짜: {bar.Date:yyyy-MM-dd}");
+                Console.WriteLine($"  종목: {bar.Ticker}");
+                Console.WriteLine($"  시가: {bar.Open:F0}");
+                Console.WriteLine($"  고가: {bar.High:F0}");
+                Console.WriteLine($"  저가: {bar.Low:F0}");
+                Console.WriteLine($"  종가: {bar.Close:F0}");
+                Console.WriteLine($"  거래량: {bar.Volume:F0}");
+            }
+        }
+        catch (Exception ex)
+        {
+            Console.WriteLine($"❌ 오류: {ex.Message}");
+            Console.WriteLine($"스택트레이스: {ex.StackTrace}");
+        }
+
+        Console.WriteLine("");
+        Console.WriteLine("테스트 완료.");
+    }
+}