diff --git a/apps/api/src/main.py b/apps/api/src/main.py
index 1886eed6..47aed008 100644
--- a/apps/api/src/main.py
+++ b/apps/api/src/main.py
@@ -229,15 +229,14 @@ async def lifespan(_app: FastAPI) -> AsyncGenerator[None, None]:
     register_all_providers()
     logger.info("mcp_providers_registered")
 
-    # Phase 6.5: Telegram 心跳監控 (防止沉默盲點)
-    # - 每 30 分鐘發送心跳，證明告警鏈路正常
-    # - 超過 2 小時沒訊息則告警
-    if settings.OPENCLAW_TG_BOT_TOKEN:
-        await telegram_gw.start_heartbeat_monitor(
-            heartbeat_interval_minutes=30,
-            silence_threshold_hours=2,
-        )
-        logger.info("telegram_heartbeat_monitor_started")
+    # Phase 6.5: Telegram 心跳監控
+    # 2026-04-15 ogt: 停用 — 心跳已轉發到另一個 Telegram 群組，不需在此頻道重複發送
+    # if settings.OPENCLAW_TG_BOT_TOKEN:
+    #     await telegram_gw.start_heartbeat_monitor(
+    #         heartbeat_interval_minutes=30,
+    #         silence_threshold_hours=2,
+    #     )
+    logger.info("telegram_heartbeat_monitor_disabled", reason="forwarded_to_separate_group")
 
     # Reboot Recovery: Warm-up Redis Working Memory from PostgreSQL
     # 2026-04-05 ogt: 重開機後 Redis 清空，從 DB restore 未解決的 incidents
diff --git a/apps/api/src/services/ai_router.py b/apps/api/src/services/ai_router.py
index 6958985b..97663f70 100644
--- a/apps/api/src/services/ai_router.py
+++ b/apps/api/src/services/ai_router.py
@@ -1001,19 +1001,23 @@ class AIRouterExecutor:
                 pass
 
         # 2026-04-04 ogt: Phase 25 P0 — require_local 全部失敗時 Telegram 通知（隱私邊界）
+        # 2026-04-15 ogt: 改用 ADR-075 TYPE-1 格式，禁止純文字 raw notification
         if require_local:
             try:
                 from src.services.telegram_gateway import get_telegram_gateway
                 tg = get_telegram_gateway()
                 import asyncio as _asyncio
-                # 2026-04-14 Claude Sonnet 4.6: send_text 方法不存在，改 send_notification
+                tried_str = ", ".join(provider_order)
+                formatted = (
+                    "⚠️ <b>TYPE-1 | AI Provider 不可用</b>\n"
+                    "──────────────────────\n"
+                    f"├─ 已嘗試: <code>{tried_str}</code>\n"
+                    "└─ 原因: require_local=True，無可用本地 Provider\n"
+                    "\n"
+                    "需要人工介入"
+                )
                 _asyncio.create_task(
-                    tg.send_notification(
-                        "⚠️ <b>DIAGNOSE 本地 Provider 不可用</b>\n"
-                        f"已嘗試: {', '.join(provider_order)}\n"
-                        "需要人工介入，雲端 Provider 不會被呼叫（隱私邊界）。",
-                        parse_mode="HTML",
-                    )
+                    tg.send_notification(formatted, parse_mode="HTML")
                 )
             except Exception as _tg_e:
                 logger.warning("diagnose_reject_telegram_failed", error=str(_tg_e))
diff --git a/apps/api/src/services/openclaw.py b/apps/api/src/services/openclaw.py
index ee887690..b29a68f0 100644
--- a/apps/api/src/services/openclaw.py
+++ b/apps/api/src/services/openclaw.py
@@ -893,8 +893,11 @@ class OpenClawService:
                 except Exception as _e:
                     logger.warning("ai_control_override_failed", error=str(_e))
 
-                # Step 3: D7 隱私 — DIAGNOSE/CODE_REVIEW 強制 local
-                require_local = decision.intent in (IntentType.DIAGNOSE, IntentType.CODE_REVIEW)
+                # Step 3: D7 隱私 — CODE_REVIEW 強制 local
+                # 2026-04-15 ogt: DIAGNOSE 移除 require_local（v4.3 決策：NIM 為主力，無隱私問題）
+                # ai_router.py v4.3 已明確：「NIM 從 Phase 22 起就是主力，無隱私問題」
+                # require_local=True 對 DIAGNOSE 只會讓所有 provider 被 privacy_skip → 永遠失敗
+                require_local = decision.intent in (IntentType.CODE_REVIEW,)
 
                 result = await executor.execute(
                     prompt=prompt,