feat: Sprint 4 Phase E+F — 前端處置統計 + 週報處置分佈

Phase E: 前端頁面
- E1: /reports 完整處置統計儀表板 (已在 Sprint F 完成)
- E2: 首頁 Metrics Strip — 從 disposition API 取得真實自動化率
  優先使用 /stats/disposition auto_rate，fallback 到 incidents 推算
- E3: /auto-repair 處置概況卡片 (已在 Sprint F 完成)
- E4: /neural-command stats tab 處置分佈 (已在 Sprint F 完成)
- E5: i18n 翻譯 zh-TW + en (已在 Sprint F 完成)

Phase F: 週報 + 文件
- F1: WeeklyReportMessage 新增 disposition 5 欄位
  週報格式加「📋 處置分佈」區塊 (自動/冷啟動/人工/手動 + 自動化率)
  weekly_report_service 整合 get_all_disposition_stats()
- message 字數上限從 900 提升到 1200 (適應處置區塊)

Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>

apps/api/src/services/telegram_gateway.py

@@ -978,6 +978,12 @@ class WeeklyReportMessage:
     # 成本
     ai_cost_week: float = 0.0
     ai_tokens_week: int = 0
+    # 2026-04-07 Claude Code: Sprint 4 F1 — 處置分佈
+    disposition_auto: int = 0
+    disposition_human: int = 0
+    disposition_manual: int = 0
+    disposition_cold_start: int = 0
+    disposition_total: int = 0
 
     def format(self) -> str:
         """格式化為 Telegram HTML"""
@@ -1015,10 +1021,24 @@ class WeeklyReportMessage:
             f"━━━━━━━━━━━━━━━━━━━\n"
             f"💰 <b>AI 成本</b>\n"
             f"├ 費用: $<code>{self.ai_cost_week:.2f}</code>\n"
-            f"└ Tokens: <code>{self.ai_tokens_week:,}</code>"
+            f"└ Tokens: <code>{self.ai_tokens_week:,}</code>\n"
         )
 
-        return message[:900]
+        # Sprint 4 F1: 處置分佈（有資料才加）
+        if self.disposition_total > 0:
+            auto_total = self.disposition_auto + self.disposition_cold_start
+            auto_rate = int(auto_total / self.disposition_total * 100) if self.disposition_total > 0 else 0
+            message += (
+                f"━━━━━━━━━━━━━━━━━━━\n"
+                f"📋 <b>處置分佈</b>\n"
+                f"├ 🤖 自動修復: <code>{self.disposition_auto}</code>\n"
+                f"├ ❄️ 冷啟動信任: <code>{self.disposition_cold_start}</code>\n"
+                f"├ 👤 人工審核: <code>{self.disposition_human}</code>\n"
+                f"├ 🔧 手動處理: <code>{self.disposition_manual}</code>\n"
+                f"└ 自動化率: <b>{auto_rate}%</b>"
+            )
+
+        return message[:1200]
 
 
 @dataclass

apps/api/src/services/weekly_report_service.py

@@ -178,6 +178,20 @@ class WeeklyReportService:
         pod_restarts = k3s_status.pod_restart_48h if k3s_status else 0
         hpa_events = 0  # 需要從 Prometheus 取得 HPA 事件
 
+        # 2026-04-07 Claude Code: Sprint 4 F1 — 取得處置分佈
+        disp_auto = disp_human = disp_manual = disp_cold = disp_total = 0
+        try:
+            from src.services.anomaly_counter import get_anomaly_counter
+            counter = get_anomaly_counter()
+            disp_summary, _ = await counter.get_all_disposition_stats()
+            disp_auto = disp_summary.get("auto_repair", 0)
+            disp_human = disp_summary.get("human_approved", 0)
+            disp_manual = disp_summary.get("manual_resolved", 0)
+            disp_cold = disp_summary.get("cold_start_trust", 0)
+            disp_total = disp_summary.get("total", 0)
+        except Exception as _disp_e:
+            logger.warning("weekly_report_disposition_failed", error=str(_disp_e))
+
         # 組裝週報
         report = WeeklyReportMessage(
             week_range=week_range,
@@ -197,6 +211,11 @@ class WeeklyReportService:
             deploy_count=deploys,
             ai_cost_week=0.0,  # 需要從 AI 成本追蹤取得
             ai_tokens_week=0,  # 需要從 AI 成本追蹤取得
+            disposition_auto=disp_auto,
+            disposition_human=disp_human,
+            disposition_manual=disp_manual,
+            disposition_cold_start=disp_cold,
+            disposition_total=disp_total,
         )
 
         logger.info(

apps/web/src/app/[locale]/page.tsx

@@ -365,8 +365,22 @@ export default function Home({ params }: { params: { locale: string } }) {
   // P0 count
   const p0Count = incidents?.filter(i => i.severity === 'P0').length ?? 0
 
-  // 自動處置率
+  // 2026-04-07 Claude Code: Sprint 4 E2 — 從 disposition API 取得真實自動化率
+  const [dispositionRate, setDispositionRate] = useState<{ auto_rate: number; total: number } | null>(null)
+  useEffect(() => {
+    fetch(`${API_BASE}/api/v1/stats/disposition`)
+      .then(r => r.json())
+      .then(d => {
+        if (d?.summary) setDispositionRate({ auto_rate: d.summary.auto_rate, total: d.summary.total })
+      })
+      .catch(() => {})
+  }, [])
+
+  // 自動處置率 — 優先使用 disposition API，fallback 到 incidents 推算
   const autoRemediationRate = (() => {
+    if (dispositionRate && dispositionRate.total > 0) {
+      return `${Math.round(dispositionRate.auto_rate * 100)}%`
+    }
     if (!incidents?.length) return '--'
     const resolved = incidents.filter(i => i.status === 'resolved' || i.status === 'closed').length
     return `${((resolved / incidents.length) * 100).toFixed(0)}%`
@@ -374,6 +388,9 @@ export default function Home({ params }: { params: { locale: string } }) {
 
   // 自動處置率數值 (for progress bar)
   const autoRemediationPct = (() => {
+    if (dispositionRate && dispositionRate.total > 0) {
+      return Math.round(dispositionRate.auto_rate * 100)
+    }
     if (!incidents?.length) return 0
     const resolved = incidents.filter(i => i.status === 'resolved' || i.status === 'closed').length
     return Math.round((resolved / incidents.length) * 100)