fix(telegram): 新增 openclaw_nemo/nvidia_nim 顯示名稱映射

- format() 和 format_with_nemotron() 兩處 provider_names 均加入:
  openclaw_nemo → "OpenClaw Nemo"
  openclaw_nvidia_nim → "OpenClaw Nemo"
  openclaw_qwen → "OpenClaw Nemo"
- 修正顯示 "OPENCLAW_NEMO" (大寫) 的問題
- 2026-04-01 ogt: 配合 AI 仲裁架構調整

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

apps/api/src/services/telegram_gateway.py

@@ -256,6 +256,9 @@ class TelegramMessage:
                 "ollama": "Ollama",
                 "gemini": "Gemini",
                 "claude": "Claude",
+                "openclaw_nemo": "OpenClaw Nemo",
+                "openclaw_nvidia_nim": "OpenClaw Nemo",
+                "openclaw_qwen": "OpenClaw Nemo",
             }
             provider_display = provider_names.get(self.ai_provider.lower(), self.ai_provider.upper())
             source_label = f"🤖 <b>{provider_display} 仲裁</b>"
@@ -354,6 +357,9 @@ class TelegramMessage:
                 "gemini": "Gemini",
                 "claude": "Claude",
                 "nvidia": "Nemotron",
+                "openclaw_nemo": "OpenClaw Nemo",
+                "openclaw_nvidia_nim": "OpenClaw Nemo",
+                "openclaw_qwen": "OpenClaw Nemo",
             }
             provider_display = provider_names.get(self.ai_provider.lower(), self.ai_provider.upper())
             source_label = f"🤖 <b>{provider_display} 仲裁</b>"