feat(hermes): 接入 polling 路徑 — @tsenyangbot @mention → Hermes NL (ADR-094)

_handle_group_message() 新增 Hermes NL 路由：
  HERMES_NL_ENABLED=true + @tsenyangbot @mention → process_nl_message()
  → send_hermes_reply()，不影響既有 OpenClaw/NemoClaw 路徑

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

apps/api/src/services/telegram_gateway.py

@@ -5267,6 +5267,31 @@ class TelegramGateway:
             await self._handle_group_command(cmd, chat_id, message_id, full_text=text.strip())
             return
 
+        # ── Hermes NL: @tsenyangbot @mention → Claude Agent SDK 12-Agent (ADR-094/095) ──
+        # 2026-04-25 Claude Sonnet 4.6: 接入 polling 路徑，HERMES_NL_ENABLED 控制
+        if settings.HERMES_NL_ENABLED:
+            _bot_un = getattr(settings, "TELEGRAM_BOT_USERNAME", "tsenyangbot")
+            import unicodedata as _uc
+            if f"@{_bot_un}".lower() in _uc.normalize("NFKC", text).lower():
+                _clean = text.replace(f"@{_bot_un}", "").strip()
+                if _clean:
+                    from src.hermes.nl_gateway import process_nl_message as _nl
+                    try:
+                        _reply = await _nl(
+                            _clean,
+                            chat_id=str(chat_id),
+                            user_id=user_id,
+                            username=username,
+                        )
+                        await self.send_hermes_reply(
+                            text=_reply,
+                            chat_id=str(chat_id),
+                            reply_to_message_id=message_id,
+                        )
+                    except Exception as _hermes_err:
+                        logger.error("hermes_nl_polling_failed", error=str(_hermes_err))
+                    return
+
         from src.services.chat_manager import get_chat_manager as _get_cm
         chat_mgr = _get_cm()