diff --git a/.gitea/workflows/cd.yaml b/.gitea/workflows/cd.yaml
index 58e55ecd..4206c111 100644
--- a/.gitea/workflows/cd.yaml
+++ b/.gitea/workflows/cd.yaml
@@ -810,35 +810,39 @@ jobs:
           mkdir -p ~/.ssh
           echo "$SSH_KEY_188" > "${HOME}/.ssh/deploy_key_188"
           chmod 600 "${HOME}/.ssh/deploy_key_188"
-          ssh-keyscan 192.168.0.188 >> ~/.ssh/known_hosts 2>/dev/null
+          timeout -k 5s 10s ssh-keyscan 192.168.0.188 >> ~/.ssh/known_hosts 2>/dev/null \
+            || echo "⚠️ 188 host key scan 失敗，改用 StrictHostKeyChecking=accept-new"
           SSH_188_OPTS=(
             -i "${HOME}/.ssh/deploy_key_188"
             -o BatchMode=yes
+            -o StrictHostKeyChecking=accept-new
             -o ConnectTimeout=10
             -o ServerAliveInterval=10
             -o ServerAliveCountMax=3
+            -o LogLevel=ERROR
+            -n
           )
 
-          timeout 30s ssh "${SSH_188_OPTS[@]}" ollama@192.168.0.188 \
+          timeout -k 5s 30s ssh "${SSH_188_OPTS[@]}" ollama@192.168.0.188 \
             "mkdir -p ~/awoooi-ops" \
             || echo "⚠️ 188 ops 目錄確認失敗"
 
           # 同步 docker-health-monitor.sh
-          timeout 60s scp "${SSH_188_OPTS[@]}" \
+          timeout -k 5s 60s scp "${SSH_188_OPTS[@]}" \
             scripts/ops/docker-health-monitor.sh \
             ollama@192.168.0.188:~/awoooi-ops/docker-health-monitor.sh \
             && echo "✅ docker-health-monitor.sh 已同步" \
             || echo "⚠️ docker-health-monitor.sh 同步失敗"
 
           # 同步 pg-backup.sh
-          timeout 60s scp "${SSH_188_OPTS[@]}" \
+          timeout -k 5s 60s scp "${SSH_188_OPTS[@]}" \
             scripts/ops/pg-backup.sh \
             ollama@192.168.0.188:~/awoooi-ops/pg-backup.sh \
             && echo "✅ pg-backup.sh 已同步" \
             || echo "⚠️ pg-backup.sh 同步失敗"
 
           # 確保執行權限
-          timeout 30s ssh "${SSH_188_OPTS[@]}" ollama@192.168.0.188 \
+          timeout -k 5s 30s ssh "${SSH_188_OPTS[@]}" ollama@192.168.0.188 \
             "chmod +x ~/awoooi-ops/docker-health-monitor.sh ~/awoooi-ops/pg-backup.sh && echo '✅ 權限設定完成'" \
             || echo "⚠️ 權限設定失敗"
 
diff --git a/docs/LOGBOOK.md b/docs/LOGBOOK.md
index 5356c79c..9319ea77 100644
--- a/docs/LOGBOOK.md
+++ b/docs/LOGBOOK.md
@@ -1,3 +1,15 @@
+## 2026-05-06 | CD 188 ops sync 防止 SSH 子程序停住
+
+**背景**：`22453161` 的完整 CD 已完成 tests、API/Web image build、K8s GitOps deploy，但 `Sync Ops Scripts to 188` 卡住。現場 process 顯示 `timeout 30s ssh ... 192.168.0.188` 與子 `ssh` 進入 stopped 狀態，導致 job 無法前進到 post-deploy checks。
+
+**本次修補**：
+- `ssh-keyscan 192.168.0.188` 補 `timeout -k 5s 10s`，避免 host key 掃描無限等待。
+- 188 SSH options 補 `StrictHostKeyChecking=accept-new`、`LogLevel=ERROR`、`-n`，避免非互動 runner 被 SSH stdin / host key prompt 卡住。
+- 所有 188 ops sync 的 `ssh/scp` timeout 改為 `timeout -k 5s ...`，確保超時後會強制清理子程序。
+
+**注意**：
+- 188 ops sync 是 `continue-on-error: true`，不應阻塞主部署；若 188 不可達，只能警告並讓 post-deploy checks 繼續。
+
 ## 2026-05-06 | 告警路徑 Ollama 實證與動態基線 statsmodels 相容修正
 
 **背景**：188 Ollama 退場後，需確認告警主鏈是否仍實際 fallback 到 Gemini；同時 production log 持續出現 `holt_winters_failed_fallback_to_stats`，讓動態基線訓練一直降級成滑動統計。