diff --git a/.gitea/workflows/cd-dev.yaml b/.gitea/workflows/cd-dev.yaml
new file mode 100644
index 00000000..7d168d5a
--- /dev/null
+++ b/.gitea/workflows/cd-dev.yaml
@@ -0,0 +1,197 @@
+# =============================================================================
+# AWOOOI CD Pipeline - 開發環境 (dev branch)
+# =============================================================================
+# 流程: Build → Push to Harbor (dev tag) → Deploy to awoooi-dev namespace
+# 用途: 驗證修改，確認無誤後才 merge main → 觸發正式環境部署
+# 2026-04-01 ogt: 建立開發環境 CI/CD 分離機制
+
+name: CD Pipeline (Dev)
+
+on:
+  push:
+    branches: [dev]
+  workflow_dispatch:
+
+concurrency:
+  group: cd-dev-deploy-${{ github.ref }}
+  cancel-in-progress: false
+
+env:
+  HARBOR: 192.168.0.110:5000
+  HARBOR_MIRROR: 192.168.0.110:5001
+  OTEL_EXPORTER_OTLP_ENDPOINT: http://192.168.0.188:24318
+  OTEL_SERVICE_NAME: awoooi-cd-dev
+  OTEL_RESOURCE_ATTRIBUTES: service.version=${{ github.sha }},deployment.environment=dev
+
+jobs:
+  build-and-deploy-dev:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Get Commit Info
+        id: commit
+        run: |
+          echo "short_sha=${GITHUB_SHA::7}" >> $GITHUB_OUTPUT
+          echo "message=$(git log -1 --pretty=%s | head -c 50)" >> $GITHUB_OUTPUT
+          echo "start_time=$(date +%s)" >> $GITHUB_OUTPUT
+
+      - name: Notify Dev Deploy Start
+        run: |
+          MSG="🔧 <b>[DEV] 部署開始</b>
+          ├ 📝 ${{ steps.commit.outputs.message }}
+          ├ 🔖 <code>${{ steps.commit.outputs.short_sha }}</code>
+          └ 🌿 dev branch"
+          printf '%b' "$MSG" | curl -fS -X POST "https://api.telegram.org/bot${{ secrets.TELEGRAM_BOT_TOKEN }}/sendMessage" \
+            -d "chat_id=${{ secrets.TELEGRAM_CHAT_ID }}" \
+            -d "parse_mode=HTML" \
+            --data-urlencode "text@-"
+
+      # API 測試 (同 prod CI，確保 dev 也通過)
+      - name: Run API Tests
+        run: |
+          VENV=/opt/api-venv
+          HASH_FILE=/opt/api-venv/.deps_hash
+          CURRENT_HASH=$(md5sum apps/api/pyproject.toml | awk '{print $1}')
+
+          if [ ! -d "$VENV" ] || [ "$(cat $HASH_FILE 2>/dev/null)" != "$CURRENT_HASH" ]; then
+            python3 -m venv $VENV
+            source $VENV/bin/activate
+            pip install -q uv
+            cd apps/api && uv pip install -q -e ".[dev]" && cd -
+            echo "$CURRENT_HASH" > $HASH_FILE
+          else
+            source $VENV/bin/activate
+          fi
+
+          cd apps/api
+          pytest tests/ -v --tb=short -x \
+            --ignore=tests/test_anomaly_counter.py \
+            --ignore=tests/test_global_repair_cooldown.py \
+            --ignore=tests/test_redis_multisig.py \
+            --ignore=tests/test_model_regression.py \
+            --ignore=tests/test_prompt_validation.py \
+            2>&1 | tail -50
+          echo "✅ API 測試通過"
+
+      - name: Login to Harbor
+        uses: docker/login-action@v3
+        with:
+          registry: ${{ env.HARBOR }}
+          username: ${{ secrets.HARBOR_USERNAME }}
+          password: ${{ secrets.HARBOR_PASSWORD }}
+
+      # Dev API 鏡像：強制重建，不用 cache（確保 models.json 等配置文件更新）
+      - name: Build and Push API (Dev)
+        run: |
+          docker build -f apps/api/Dockerfile \
+            --no-cache \
+            -t ${{ env.HARBOR }}/awoooi/api:dev-${{ github.sha }} \
+            -t ${{ env.HARBOR }}/awoooi/api:dev-latest \
+            .
+          docker push ${{ env.HARBOR }}/awoooi/api:dev-${{ github.sha }}
+          docker push ${{ env.HARBOR }}/awoooi/api:dev-latest
+          echo "✅ Dev API 鏡像建置完成"
+
+      # 注入 Dev K8s Secrets
+      - name: Inject Dev K8s Secrets
+        env:
+          SSH_PRIVATE_KEY: ${{ secrets.DEPLOY_SSH_KEY }}
+          TG_BOT_TOKEN: ${{ secrets.TELEGRAM_BOT_TOKEN }}
+          TG_CHAT_ID: ${{ secrets.TELEGRAM_CHAT_ID }}
+          NVIDIA_API_KEY: ${{ secrets.NVIDIA_API_KEY }}
+          GEMINI_API_KEY: ${{ secrets.GEMINI_API_KEY }}
+        run: |
+          mkdir -p ~/.ssh
+          echo "$SSH_PRIVATE_KEY" > ~/.ssh/deploy_key
+          chmod 600 ~/.ssh/deploy_key
+          ssh -o StrictHostKeyChecking=no -i ~/.ssh/deploy_key wooo@192.168.0.121 << SECRETS
+          set -e
+          export KUBECONFIG=/etc/rancher/k3s/k3s.yaml
+
+          sudo kubectl patch secret awoooi-secrets -n awoooi-dev --type='json' -p='[
+            {"op":"replace","path":"/data/OPENCLAW_TG_BOT_TOKEN","value":"'"$(echo -n "${TG_BOT_TOKEN}" | base64 -w 0)"'"},
+            {"op":"replace","path":"/data/OPENCLAW_TG_CHAT_ID","value":"'"$(echo -n "${TG_CHAT_ID}" | base64 -w 0)"'"}
+          ]' || echo "⚠️ Telegram Secrets patch 跳過"
+
+          if [ -n "${NVIDIA_API_KEY}" ]; then
+            sudo kubectl patch secret awoooi-secrets -n awoooi-dev --type='json' -p='[
+              {"op":"replace","path":"/data/NVIDIA_API_KEY","value":"'"$(echo -n "${NVIDIA_API_KEY}" | base64 -w 0)"'"}
+            ]' && echo "✅ NVIDIA_API_KEY 已注入 dev"
+          fi
+
+          if [ -n "${GEMINI_API_KEY}" ]; then
+            sudo kubectl patch secret awoooi-secrets -n awoooi-dev --type='json' -p='[
+              {"op":"replace","path":"/data/GEMINI_API_KEY","value":"'"$(echo -n "${GEMINI_API_KEY}" | base64 -w 0)"'"}
+            ]' && echo "✅ GEMINI_API_KEY 已注入 dev"
+          fi
+
+          echo "✅ Dev Secrets 注入完成"
+          SECRETS
+
+      # 部署到 awoooi-dev
+      - name: Deploy to Dev K8s
+        env:
+          SSH_PRIVATE_KEY: ${{ secrets.DEPLOY_SSH_KEY }}
+        run: |
+          cat k8s/awoooi-dev/02-configmap.yaml | \
+            ssh -o StrictHostKeyChecking=no -i ~/.ssh/deploy_key wooo@192.168.0.121 \
+            "export KUBECONFIG=/etc/rancher/k3s/k3s.yaml && sudo kubectl apply -f -"
+
+          ssh -o StrictHostKeyChecking=no -i ~/.ssh/deploy_key wooo@192.168.0.121 << 'DEPLOY'
+          set -e
+          export KUBECONFIG=/etc/rancher/k3s/k3s.yaml
+
+          sudo kubectl set image deployment/awoooi-api \
+            api=192.168.0.110:5000/awoooi/api:dev-${{ github.sha }} \
+            -n awoooi-dev
+
+          sudo kubectl rollout status deployment/awoooi-api -n awoooi-dev --timeout=120s
+          echo "✅ Dev 部署完成"
+
+          # Health Check
+          sleep 10
+          HEALTH_PASS=0
+          for i in 1 2 3; do
+            HTTP_CODE=$(curl -s -w "%{http_code}" -o /dev/null --connect-timeout 10 "http://localhost:32344/api/v1/health")
+            if [ "$HTTP_CODE" = "200" ]; then
+              echo "✅ Dev API 健康檢查通過 (port 32344)"
+              HEALTH_PASS=1
+              break
+            fi
+            echo "⏳ 嘗試 #$i: HTTP $HTTP_CODE，等待 10s..."
+            sleep 10
+          done
+          if [ "$HEALTH_PASS" = "0" ]; then
+            echo "❌ Dev API 健康檢查失敗"
+            exit 1
+          fi
+          DEPLOY
+
+      - name: Notify Dev Deploy Success
+        run: |
+          END_TIME=$(date +%s)
+          DURATION=$((END_TIME - ${{ steps.commit.outputs.start_time }}))
+          MINUTES=$((DURATION / 60))
+          SECONDS=$((DURATION % 60))
+          MSG="✅ <b>[DEV] 部署完成</b>
+          ├ 📝 ${{ steps.commit.outputs.message }}
+          ├ 🔖 <code>${{ steps.commit.outputs.short_sha }}</code>
+          ├ ⏱️ 耗時: ${MINUTES}m ${SECONDS}s
+          └ 🩺 http://192.168.0.125:32344/api/v1/health"
+          printf '%b' "$MSG" | curl -fS -X POST "https://api.telegram.org/bot${{ secrets.TELEGRAM_BOT_TOKEN }}/sendMessage" \
+            -d "chat_id=${{ secrets.TELEGRAM_CHAT_ID }}" \
+            -d "parse_mode=HTML" \
+            --data-urlencode "text@-"
+
+      - name: Notify Dev Deploy Failure
+        if: failure()
+        run: |
+          MSG="❌ <b>[DEV] 部署失敗</b>
+          ├ 📝 ${{ steps.commit.outputs.message }}
+          ├ 🔖 <code>${{ steps.commit.outputs.short_sha }}</code>
+          └ 🔗 <a href=\"http://192.168.0.110:3001/wooo/awoooi/actions\">查看日誌</a>"
+          printf '%b' "$MSG" | curl -fS -X POST "https://api.telegram.org/bot${{ secrets.TELEGRAM_BOT_TOKEN }}/sendMessage" \
+            -d "chat_id=${{ secrets.TELEGRAM_CHAT_ID }}" \
+            -d "parse_mode=HTML" \
+            --data-urlencode "text@-"
diff --git a/.gitea/workflows/cd.yaml b/.gitea/workflows/cd.yaml
index 3a008873..f50368f5 100644
--- a/.gitea/workflows/cd.yaml
+++ b/.gitea/workflows/cd.yaml
@@ -93,11 +93,14 @@ jobs:
           password: ${{ secrets.HARBOR_PASSWORD }}
 
       # ── API 鏡像建置（含 Layer Cache 加速）──────────────────────────────
+      # 2026-04-01 ogt: CACHE_BUST=git_sha 確保 src/ 和 models.json 層每次重建
+      # deps 層 (pip install) 仍可 cache → 加速；代碼/配置層強制失效
       - name: Build and Push API
         run: |
           docker build -f apps/api/Dockerfile \
             --build-arg BUILDKIT_INLINE_CACHE=1 \
             --cache-from ${{ env.HARBOR }}/awoooi/api:latest \
+            --build-arg CACHE_BUST=${{ github.sha }} \
             -t ${{ env.HARBOR }}/awoooi/api:${{ github.sha }} \
             -t ${{ env.HARBOR }}/awoooi/api:latest \
             .
diff --git a/.gitignore b/.gitignore
index b61c8d25..308acf41 100644
--- a/.gitignore
+++ b/.gitignore
@@ -79,3 +79,4 @@ temp/
 .claude/scheduled_tasks.lock
 .cursor/
 .agents/memory/
+playwright-mcp/
diff --git a/apps/api/Dockerfile b/apps/api/Dockerfile
index 50f8a246..b3dbe012 100644
--- a/apps/api/Dockerfile
+++ b/apps/api/Dockerfile
@@ -39,7 +39,9 @@ WORKDIR /app
 COPY --from=builder /usr/local/lib/python3.11/site-packages /usr/local/lib/python3.11/site-packages
 COPY --from=builder /usr/local/bin /usr/local/bin
 
-# Copy application code and models config
+# 2026-04-01 ogt: CACHE_BUST 強制失效 src/ 和 models.json 層
+# deps 層 (pip install) 仍可 cache；代碼/配置變更必須重建
+ARG CACHE_BUST=none
 COPY apps/api/src/ ./src/
 COPY apps/api/models.json ./models.json
 
diff --git a/apps/api/src/services/nvidia_provider.py b/apps/api/src/services/nvidia_provider.py
index 0de04560..ec091072 100644
--- a/apps/api/src/services/nvidia_provider.py
+++ b/apps/api/src/services/nvidia_provider.py
@@ -787,14 +787,16 @@ class NvidiaProvider:
                     return text, True, total_tokens, cost_usd
 
                 except httpx.TimeoutException as e:
-                    self._circuit_breaker.record_failure()
+                    # 2026-04-01 ogt: timeout 不計入 circuit breaker
+                    # Nemo free tier 偶爾慢是正常的，下次請求仍應優先嘗試
+                    # 只有硬性錯誤 (auth/rate limit) 才應斷路
                     NVIDIA_REQUESTS_TOTAL.labels(status="timeout", tool_name="chat").inc()
                     logger.warning("nvidia_chat_timeout", error=str(e))
                     return f"Timeout: {e}", False, 0, 0.0
 
                 except httpx.HTTPStatusError as e:
                     # 2026-03-31 ogt: 記錄完整響應體以診斷 400 錯誤
-                    self._circuit_breaker.record_failure()
+                    self._circuit_breaker.record_failure()  # 硬性錯誤才斷路
                     NVIDIA_REQUESTS_TOTAL.labels(status="error", tool_name="chat").inc()
                     response_text = e.response.text if e.response else "No response body"
                     logger.warning(
diff --git a/docs/LOGBOOK.md b/docs/LOGBOOK.md
index 669fb45b..79ae2cd6 100644
--- a/docs/LOGBOOK.md
+++ b/docs/LOGBOOK.md
@@ -5,11 +5,15 @@
 
 ---
 
-## 📍 當前狀態 (2026-04-01 11:00 台北)
+## 📍 當前狀態 (2026-04-01 17:30 台北)
 
 | 項目 | 狀態 |
 |------|------|
-| **P0 Telegram 按鈕修復** | ✅ **`e6f6734`** Redis Leader Election (多 Pod 409 修復) — CD 推送中 |
+| **Phase S + MCP 整合** | ✅ **`c9c60c3`** Phase S架構修復(82→完整) + ADR-048/049/050/051 + Playwright CD |
+| **ClawBot v5 LLM 修復 P0** | ✅ **`0d4034d`** (clawbot-v5) Ollama 預設 + qwen2.5:7b-instruct — 待部署 |
+| **Phase S 技術債清理** | ✅ **`22de22c`** S-01~S-05 全部完成 (393 passed) |
+| **用量優化 + Memory 精簡** | ✅ MEMORY 204→127行 / CLAUDE.md 221→83行 / 5個新Memory (token_efficiency + daily_habits + workflow_schedule + ui_protocol + design_quickref) |
+| **P0 Telegram 按鈕修復** | ✅ **`e6f6734`** Redis Leader Election (多 Pod 409 修復) |
 | **首席架構師完整審查 (含 Code + 測試)** | ✅ **96/100 OUTSTANDING** 詳見下方審查報告 |
 | **測試修復** | ✅ **test_smart_router + test_auto_repair + test_global_repair** 全部修復 |
 | **Phase R 首席架構師完整審查** | ✅ **ADR-047 97/100 OUTSTANDING** R1-R4 + ADR-046 全部通過 |
diff --git a/k8s/awoooi-dev/01-namespace.yaml b/k8s/awoooi-dev/01-namespace.yaml
new file mode 100644
index 00000000..018ec4e1
--- /dev/null
+++ b/k8s/awoooi-dev/01-namespace.yaml
@@ -0,0 +1,38 @@
+apiVersion: v1
+kind: Namespace
+metadata:
+  name: awoooi-dev
+  labels:
+    environment: dev
+    system: awoooi
+    name: awoooi-dev
+
+---
+apiVersion: v1
+kind: ResourceQuota
+metadata:
+  name: awoooi-dev-quota
+  namespace: awoooi-dev
+spec:
+  hard:
+    requests.cpu: "2"
+    requests.memory: 4Gi
+    limits.cpu: "4"
+    limits.memory: 8Gi
+    pods: "10"
+
+---
+apiVersion: v1
+kind: LimitRange
+metadata:
+  name: awoooi-dev-limits
+  namespace: awoooi-dev
+spec:
+  limits:
+    - type: Container
+      default:
+        cpu: "500m"
+        memory: "512Mi"
+      defaultRequest:
+        cpu: "100m"
+        memory: "128Mi"
diff --git a/k8s/awoooi-dev/02-configmap.yaml b/k8s/awoooi-dev/02-configmap.yaml
new file mode 100644
index 00000000..285940f0
--- /dev/null
+++ b/k8s/awoooi-dev/02-configmap.yaml
@@ -0,0 +1,48 @@
+# AWOOOI 開發環境 ConfigMap
+# 負責人: CIO
+# 版本: v1.0
+# 日期: 2026-04-01 (台北時區)
+# 用途: 開發/測試用，禁止用於生產環境
+
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: awoooi-config
+  namespace: awoooi-dev
+data:
+  ENVIRONMENT: "dev"
+  SYSTEM_NAME: "awoooi"
+
+  OLLAMA_URL: "http://192.168.0.188:11434"
+  OPENCLAW_URL: "http://192.168.0.188:8089"
+  KALI_SCANNER_URL: "http://192.168.0.112:8080"
+  SIGNOZ_URL: "http://192.168.0.188:3301"
+  LANGFUSE_URL: "http://192.168.0.110:3100"
+
+  OTEL_ENABLED: "true"
+  OTEL_EXPORTER_OTLP_ENDPOINT: "http://192.168.0.188:24317"
+  OTEL_SERVICE_NAME: "awoooi-api-dev"
+
+  LOG_LEVEL: "DEBUG"
+  CORS_ORIGINS: '["http://localhost:3000","http://192.168.0.121:32344","http://192.168.0.125:32344"]'
+
+  AI_FALLBACK_ORDER: '["nvidia","gemini","ollama","claude"]'
+  AI_CACHE_TTL: "300"
+
+  ENABLE_NEMOTRON_COLLABORATION: "true"
+  NEMOTRON_TIMEOUT_SECONDS: "30"
+  NEMOTRON_ASYNC_UPDATE: "true"
+  TELEGRAM_ENABLE_POLLING: "false"
+
+  CACHE_TTL_DASHBOARD: "60"
+  CACHE_TTL_HOST_STATUS: "15"
+  CACHE_TTL_AI_RESPONSE: "300"
+
+  SENTRY_URL: "http://192.168.0.110:9000"
+  SENTRY_ORG: "awoooi"
+  SENTRY_PROJECT_API: "awoooi-api"
+  SENTRY_PROJECT_WEB: "awoooi-web"
+
+  # Dev: Shadow Mode 關閉，測試自動修復
+  SHADOW_MODE_ENABLED: "false"
+  SHADOW_MODE_LOG_ONLY: "false"
diff --git a/k8s/awoooi-dev/04-deployment-api.yaml b/k8s/awoooi-dev/04-deployment-api.yaml
new file mode 100644
index 00000000..3b29539a
--- /dev/null
+++ b/k8s/awoooi-dev/04-deployment-api.yaml
@@ -0,0 +1,81 @@
+# AWOOOI API - 開發環境 Deployment
+# 版本: v1.0 | 日期: 2026-04-01
+
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: awoooi-api
+  namespace: awoooi-dev
+  labels:
+    app: awoooi-api
+    system: awoooi
+    environment: dev
+spec:
+  replicas: 1
+  revisionHistoryLimit: 2
+  selector:
+    matchLabels:
+      app: awoooi-api
+      environment: dev
+  template:
+    metadata:
+      labels:
+        app: awoooi-api
+        system: awoooi
+        environment: dev
+    spec:
+      serviceAccountName: awoooi-executor-dev
+      automountServiceAccountToken: true
+      containers:
+        - name: api
+          image: 192.168.0.110:5000/awoooi/api:dev-latest
+          imagePullPolicy: Always
+          ports:
+            - containerPort: 8000
+              name: http
+          envFrom:
+            - configMapRef:
+                name: awoooi-config
+            - secretRef:
+                name: awoooi-secrets
+          resources:
+            requests:
+              cpu: "100m"
+              memory: "256Mi"
+            limits:
+              cpu: "500m"
+              memory: "512Mi"
+          livenessProbe:
+            httpGet:
+              path: /api/v1/health
+              port: 8000
+            initialDelaySeconds: 30
+            periodSeconds: 15
+            failureThreshold: 3
+          readinessProbe:
+            httpGet:
+              path: /api/v1/health
+              port: 8000
+            initialDelaySeconds: 10
+            periodSeconds: 10
+            failureThreshold: 3
+
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: awoooi-api-svc
+  namespace: awoooi-dev
+  labels:
+    app: awoooi-api
+    environment: dev
+spec:
+  type: NodePort
+  selector:
+    app: awoooi-api
+    environment: dev
+  ports:
+    - port: 8000
+      targetPort: 8000
+      nodePort: 32344
+      name: http
diff --git a/k8s/awoooi-dev/05-rbac.yaml b/k8s/awoooi-dev/05-rbac.yaml
new file mode 100644
index 00000000..4e79f094
--- /dev/null
+++ b/k8s/awoooi-dev/05-rbac.yaml
@@ -0,0 +1,43 @@
+# AWOOOI Dev RBAC - 最小權限
+# 版本: v1.0 | 日期: 2026-04-01
+
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: awoooi-executor-dev
+  namespace: awoooi-dev
+
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: Role
+metadata:
+  name: awoooi-executor-dev-role
+  namespace: awoooi-dev
+rules:
+  - apiGroups: ["apps"]
+    resources: ["deployments"]
+    verbs: ["get", "list", "watch", "patch", "update"]
+  - apiGroups: ["apps"]
+    resources: ["deployments/scale"]
+    verbs: ["patch", "update"]
+  - apiGroups: [""]
+    resources: ["pods"]
+    verbs: ["get", "list", "watch", "delete"]
+  - apiGroups: [""]
+    resources: ["events"]
+    verbs: ["get", "list", "watch"]
+
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: RoleBinding
+metadata:
+  name: awoooi-executor-dev-binding
+  namespace: awoooi-dev
+subjects:
+  - kind: ServiceAccount
+    name: awoooi-executor-dev
+    namespace: awoooi-dev
+roleRef:
+  kind: Role
+  apiRef: awoooi-executor-dev-role
+  apiGroup: rbac.authorization.k8s.io