fix(review): 架構審查修復 — P0 import crash + i18n 零 hardcode + 靜默錯誤

P0:
- proposal_service.py: 補 get_redis + INCIDENT_KEY_PREFIX import
  (修前: resolve_incident_after_approval 必 NameError crash)

P1 i18n:
- page.tsx: 拓撲群組移除 emoji，改用 tTopo() i18n key
- page.tsx: 主機標籤 (DevOps金庫等) 改 tTopo() i18n
- ai-model-status.tsx: 加 useTranslations，AI 模型狀態 → t('aiModelStatus')
- disposition-mini.tsx: 查看完整報表 → t('viewAllReport')
- recent-activity.tsx: 查看活動串流 → t('viewAllAlerts')

P2 品質:
- pending-approvals-card.tsx: approve/reject 加 r.ok 檢查+錯誤顯示，查看全部授權加路由+i18n
- page-tabs.tsx: TabSkeleton 載入中... → t('loading')
- page.tsx: ↑5% → tDashboard('trendUp', {pct}) 動態值
- page.tsx: Prometheus '23' hardcode → '-- targets'

i18n 新增 key (zh-TW + en 同步):
- dashboard: viewAllAlerts/viewAllAuth/viewAllReport/aiModelStatus/loading/trendUp
- topology: groupExternal/allReachable/investigating/hostDevops/hostAiData/hostK3sMaster/hostK3sWorker

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

apps/api/src/services/proposal_service.py

@@ -39,10 +39,11 @@ from src.models.incident import (
     IncidentStatus,
     Severity,
 )
+from src.core.redis_client import get_redis
 from src.services.approval_db import get_approval_service
 from src.services.incident_engine import get_incident_engine
 from src.services.incident_memory import get_incident_memory
-from src.services.incident_service import get_incident_service
+from src.services.incident_service import INCIDENT_KEY_PREFIX, get_incident_service
 from src.services.openclaw import get_openclaw
 from src.services.trust_engine import normalize_action_pattern, trust_engine
 from src.utils.incident_converter import local_to_brain
@@ -179,9 +180,11 @@ class ProposalService:
 
                 # LLM 提供的 risk_level 轉換
                 llm_risk = llm_proposal.get("risk_level", "medium")
+                # 2026-04-09 Claude Sonnet 4.6: P1-2 QA修復 — 補 "high" 鍵，防止 LLM 自由文字回傳 high 時降為 MEDIUM
                 risk_map = {
                     "low": ApprovalRiskLevel.LOW,
                     "medium": ApprovalRiskLevel.MEDIUM,
+                    "high": ApprovalRiskLevel.HIGH,
                     "critical": ApprovalRiskLevel.CRITICAL,
                 }
                 base_risk = risk_map.get(llm_risk, ApprovalRiskLevel.MEDIUM)