feat: add passive channel monitoring mode (#5592)

* feat: add passive channel monitoring mode

* fix: clarify passive monitor mode copy

web/default/src/i18n/locales/zh.json

@@ -704,6 +704,7 @@
     "Channel models": "渠道模型",
     "Channel name is required": "渠道名称是必填的",
     "Channel test completed": "渠道测试完成",
+    "Channel test mode": "渠道测试模式",
     "Channel type is required": "渠道类型是必填的",
     "Channel updated successfully": "渠道更新成功",
     "Channel-specific settings (JSON format)": "渠道特定设置（JSON 格式）",
@@ -2078,6 +2079,7 @@
     "Hourly token usage by model over the past 24 hours": "过去 24 小时内按模型分布的小时级 Token 使用量",
     "hours": "小时",
     "How client credentials are sent to the token endpoint": "客户端凭据如何发送至令牌端点",
+    "How frequently the system checks auto-disabled channels for recovery": "系统检查自动禁用渠道是否可恢复的频率",
     "How frequently the system tests all channels": "系统测试所有渠道的频率",
     "How It Works": "工作流程",
     "How model mapping works": "模型映射如何工作",
@@ -3014,6 +3016,7 @@
     "Pass when key is missing": "字段缺失时通过",
     "Pass-Through": "透传",
     "Pass-through Headers (comma-separated or JSON array)": "透传请求头（逗号分隔或 JSON 数组）",
+    "Passive recovery only": "仅被动恢复",
     "Passkey": "Passkey",
     "Passkey Authentication": "通行密钥认证",
     "Passkey is not available in this browser": "此浏览器中不支持 Passkey",
@@ -3690,6 +3693,8 @@
     "Scan this QR code with your authenticator app (Google Authenticator, Microsoft Authenticator, etc.)": "使用您的身份验证器应用（Google Authenticator、Microsoft Authenticator 等）扫描此二维码",
     "Scenario Templates": "场景模板",
     "Scheduled channel tests": "定期渠道测试",
+    "Scheduled full test": "定时全量测试",
+    "Scheduled full test probes non-manually-disabled channels; passive recovery only checks auto-disabled channels after real request failures.": "定时全量测试会探测非手动禁用的渠道；仅被动恢复只会在真实请求失败导致渠道自动禁用后检查这些渠道是否可恢复。",
     "scheduling controls": "调度控制能力",
     "Science": "科研",
     "Scope": "作用域",