봇 무음 크래시 방지 — trading_loop 예외 처리 + 워치독 추가

- app/main.py: trading_loop while 루프 전체를 try/except로 감싸 예외 발생 시
  로그+Discord 알림 후 루프 재개 (연속 10회 오류 시에만 종료)
- scripts/_watchdog.py: 봇 PID 생존 확인, 죽어있으면 Discord 알림 + 자동 재시작
- scripts/run_watchdog.ps1: 워치독 PowerShell 래퍼
- scripts/setup_scheduler.ps1: StockBot_Watchdog 태스크 등록 추가 (5분 간격)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

scripts/setup_scheduler.ps1

@@ -42,7 +42,7 @@ function Register-StockTask($name, $time, $script, $limitMin) {
     Write-Host "[OK] $name 등록 완료 (평일 $time)" -ForegroundColor Green
 }
 
-# ── 3개 태스크 등록 (StockBot_Bot 제거 — /morning이 /start-bot을 호출함) ────
+# ── 태스크 등록 ────────────────────────────────────────────────────────────────
 # 08:15  claude /morning    → 뉴스+KIS 수집 → daily_context.json → /start-bot 호출
 Register-StockTask "StockBot_Morning" "08:15" "run_morning.ps1" 20
 
@@ -52,6 +52,34 @@ Register-StockTask "StockBot_Midday"  "11:20" "run_midday.ps1"  20
 # 15:30  claude /evening    → 결과 분석 → 리포트 → Discord
 Register-StockTask "StockBot_Evening" "15:30" "run_evening.ps1" 30
 
+# 워치독: 5분마다 봇 생존 확인 → 죽어있으면 Discord 알림 + 자동 재시작
+function Register-WatchdogTask {
+    $times = @("09:00","09:05","09:10","09:15","09:20","09:25","09:30","09:35","09:40","09:45","09:50","09:55",
+               "10:00","10:05","10:10","10:15","10:20","10:25","10:30","10:35","10:40","10:45","10:50","10:55",
+               "11:00","11:05","11:10","11:15","11:20","11:25","11:30","11:35","11:40","11:45","11:50","11:55",
+               "12:00","12:05","12:10","12:15","12:20","12:25","12:30","12:35","12:40","12:45","12:50","12:55",
+               "13:00","13:05","13:10","13:15","13:20","13:25","13:30","13:35","13:40","13:45","13:50","13:55",
+               "14:00","14:05","14:10","14:15","14:20","14:25","14:30","14:35","14:40","14:45","14:50","14:55",
+               "15:00","15:05","15:10")
+    $triggers = $times | ForEach-Object {
+        New-ScheduledTaskTrigger -Weekly -DaysOfWeek $weekdays -At $_
+    }
+    $action = New-ScheduledTaskAction `
+        -Execute "powershell.exe" `
+        -Argument "-NonInteractive -ExecutionPolicy Bypass -File `"$PROJECT\scripts\run_watchdog.ps1`"" `
+        -WorkingDirectory $PROJECT
+    $settings = New-ScheduledTaskSettingsSet `
+        -ExecutionTimeLimit (New-TimeSpan -Minutes 3) `
+        -StartWhenAvailable `
+        -MultipleInstances IgnoreNew `
+        -DontStopIfGoingOnBatteries
+    $settings.DisallowStartIfOnBatteries = $false
+    Register-ScheduledTask -TaskName "StockBot_Watchdog" -TaskPath "\StockBot\" `
+        -Trigger $triggers -Action $action -Settings $settings -RunLevel Limited -Force | Out-Null
+    Write-Host "[OK] StockBot_Watchdog 등록 완료 (평일 09:00~15:10, 5분 간격)" -ForegroundColor Green
+}
+Register-WatchdogTask
+
 # StockBot_Bot 비활성화 유지 (이미 존재할 경우)
 $botTask = Get-ScheduledTask -TaskName "StockBot_Bot" -TaskPath "\StockBot\" -ErrorAction SilentlyContinue
 if ($botTask) {