fix(cr): 首席架構師 CR P0/P1/P2 全修補

P0-1: incident_service.py — 刪除 classify_alert_early 死碼 L131-132
P0-2: cron_backup_restore_test.sh — date +%s%3N→+%s，修正毫秒時間戳
P1-2: gitea_webhook.py — fingerprint 移除 sha_short，收斂同 branch 失敗
heartbeat: 還原原始空格對齊格式（統帥要求原本怎樣就怎樣）

P1-1(積木化)/P1-3(TYPE-4)/P2-1(timeZone)/P2-2(IP)/P2-3(WS重連) 待後續處理

2026-04-12 ogt
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

scripts/cron_backup_restore_test.sh

@@ -30,7 +30,9 @@ velero restore create \
   2>&1 || EXIT_CODE=$?
 
 # --- 寫入 textfile metric ---
-TS=$(date +%s%3N)
+# 注意：Prometheus textfile collector 不接受毫秒時間戳（13位），只接受秒（10位）
+# 直接省略 timestamp，由 node-exporter scrape 時自動補上
+TS=$(date +%s)
 mkdir -p "$(dirname "${TEXTFILE}")"
 
 if [ "${EXIT_CODE}" -eq 0 ]; then
@@ -38,10 +40,10 @@ if [ "${EXIT_CODE}" -eq 0 ]; then
   cat > "${TEXTFILE}" <<PROM
 # HELP awoooi_backup_restore_test_success 1 = last backup restore dry-run succeeded
 # TYPE awoooi_backup_restore_test_success gauge
-awoooi_backup_restore_test_success 1 ${TS}
+awoooi_backup_restore_test_success 1
 # HELP awoooi_backup_restore_test_timestamp_seconds Unix timestamp of last test run
 # TYPE awoooi_backup_restore_test_timestamp_seconds gauge
-awoooi_backup_restore_test_timestamp_seconds $(date +%s) ${TS}
+awoooi_backup_restore_test_timestamp_seconds ${TS}
 PROM
   echo "Textfile written: success"
   exit 0
@@ -50,10 +52,10 @@ else
   cat > "${TEXTFILE}" <<PROM
 # HELP awoooi_backup_restore_test_success 1 = last backup restore dry-run succeeded
 # TYPE awoooi_backup_restore_test_success gauge
-awoooi_backup_restore_test_success 0 ${TS}
+awoooi_backup_restore_test_success 0
 # HELP awoooi_backup_restore_test_timestamp_seconds Unix timestamp of last test run
 # TYPE awoooi_backup_restore_test_timestamp_seconds gauge
-awoooi_backup_restore_test_timestamp_seconds $(date +%s) ${TS}
+awoooi_backup_restore_test_timestamp_seconds ${TS}
 PROM
   echo "Textfile written: failure"
   exit 1