Refactor/simplify proxy logs (#585)

* refactor(proxy): simplify logging for better readability

- Delete 17 verbose debug logs from handlers, streaming, and response_processor
- Convert excessive INFO logs to DEBUG level for internal processing details
- Add 2 critical INFO logs in forwarder.rs for failover scenarios:
  - Log when switching to next provider after failure
  - Log when all providers have been exhausted
- Fix clippy uninlined_format_args warning

This reduces log noise while maintaining visibility into key user-facing decisions.

* fix: replace unsafe unwrap() calls with proper error handling

- database/dao/mcp.rs: Use map_err for serde_json serialization
- database/dao/providers.rs: Use map_err for settings_config and meta serialization
- commands/misc.rs: Use expect() for compile-time regex pattern
- services/prompt.rs: Use unwrap_or_default() for SystemTime
- deeplink/provider.rs: Replace unwrap() with is_none_or pattern for Option checks

Reduces potential panic points from 26 to 1 (static regex init, safe).

* refactor(proxy): simplify verbose logging output

- Remove response JSON full output logging in response_processor
- Remove per-request INFO logs in provider_router (failover status, provider selection)
- Change model mapping log from INFO to DEBUG
- Change usage logging failure from INFO to WARN
- Remove redundant debug logs for circuit breaker operations

Reduces log noise significantly while preserving important warnings and errors.

* feat(proxy): add structured log codes for i18n support

Add error code system to proxy module logs for multi-language support:

- CB-001~006: Circuit breaker state transitions and triggers
- SRV-001~004: Proxy server lifecycle events
- FWD-001~002: Request forwarding and failover
- FO-001~005: Failover switch operations
- USG-001~002: Usage logging errors

Log format: [CODE] Chinese message
Frontend/log tools can map codes to any language.

New file: src/proxy/log_codes.rs - centralized code definitions

* chore: bump version to 3.9.1

* style: format code with prettier and rustfmt

* fix(ui): allow number inputs to be fully cleared before saving

- Convert numeric state to string type for controlled inputs
- Use isNaN() check instead of || fallback to allow 0 values
- Apply fix to ProxyPanel, CircuitBreakerConfigPanel,
  AutoFailoverConfigPanel, and ModelTestConfigPanel

* feat(pricing): support @ separator in model name matching

- Refactor model name cleaning into chained method calls
- Add @ to - replacement (e.g., gpt-5.2-codex@low → gpt-5.2-codex-low)
- Add test case for @ separator matching

* fix(proxy): improve validation and error handling in proxy config panels

- Add StopTimeout/StopFailed error types for proper stop() error reporting
- Replace silent clamp with validation-and-block in config panels
- Add listenAddress format validation in ProxyPanel
- Use log_codes constants instead of hardcoded strings
- Use once_cell::Lazy for regex precompilation

* fix(proxy): harden error handling and input validation

- Handle RwLock poisoning in settings.rs with unwrap_or_else
- Add fallback for dirs::home_dir() in config modules
- Normalize localhost to 127.0.0.1 in ProxyPanel
- Format IPv6 addresses with brackets for valid URLs
- Strict port validation with pure digit regex
- Treat NaN as validation failure in config panels
- Log warning on cost_multiplier parse failure
- Align timeoutSeconds range to [0, 300] across all panels

src/components/proxy/AutoFailoverConfigPanel.tsx

@@ -21,52 +21,157 @@ export function AutoFailoverConfigPanel({
   const { data: config, isLoading, error } = useAppProxyConfig(appType);
   const updateConfig = useUpdateAppProxyConfig();
 
+  // 使用字符串状态以支持完全清空数字输入框
   const [formData, setFormData] = useState({
     autoFailoverEnabled: false,
-    maxRetries: 3,
-    streamingFirstByteTimeout: 30,
-    streamingIdleTimeout: 60,
-    nonStreamingTimeout: 300,
-    circuitFailureThreshold: 5,
-    circuitSuccessThreshold: 2,
-    circuitTimeoutSeconds: 60,
-    circuitErrorRateThreshold: 0.5,
-    circuitMinRequests: 10,
+    maxRetries: "3",
+    streamingFirstByteTimeout: "30",
+    streamingIdleTimeout: "60",
+    nonStreamingTimeout: "300",
+    circuitFailureThreshold: "5",
+    circuitSuccessThreshold: "2",
+    circuitTimeoutSeconds: "60",
+    circuitErrorRateThreshold: "50", // 存储百分比值
+    circuitMinRequests: "10",
   });
 
   useEffect(() => {
     if (config) {
       setFormData({
         autoFailoverEnabled: config.autoFailoverEnabled,
-        maxRetries: config.maxRetries,
-        streamingFirstByteTimeout: config.streamingFirstByteTimeout,
-        streamingIdleTimeout: config.streamingIdleTimeout,
-        nonStreamingTimeout: config.nonStreamingTimeout,
-        circuitFailureThreshold: config.circuitFailureThreshold,
-        circuitSuccessThreshold: config.circuitSuccessThreshold,
-        circuitTimeoutSeconds: config.circuitTimeoutSeconds,
-        circuitErrorRateThreshold: config.circuitErrorRateThreshold,
-        circuitMinRequests: config.circuitMinRequests,
+        maxRetries: String(config.maxRetries),
+        streamingFirstByteTimeout: String(config.streamingFirstByteTimeout),
+        streamingIdleTimeout: String(config.streamingIdleTimeout),
+        nonStreamingTimeout: String(config.nonStreamingTimeout),
+        circuitFailureThreshold: String(config.circuitFailureThreshold),
+        circuitSuccessThreshold: String(config.circuitSuccessThreshold),
+        circuitTimeoutSeconds: String(config.circuitTimeoutSeconds),
+        circuitErrorRateThreshold: String(
+          Math.round(config.circuitErrorRateThreshold * 100),
+        ),
+        circuitMinRequests: String(config.circuitMinRequests),
       });
     }
   }, [config]);
 
   const handleSave = async () => {
     if (!config) return;
+    // 解析数字，返回 NaN 表示无效输入
+    const parseNum = (val: string) => {
+      const trimmed = val.trim();
+      // 必须是纯数字
+      if (!/^-?\d+$/.test(trimmed)) return NaN;
+      return parseInt(trimmed);
+    };
+
+    // 定义各字段的有效范围
+    const ranges = {
+      maxRetries: { min: 0, max: 10 },
+      streamingFirstByteTimeout: { min: 0, max: 180 },
+      streamingIdleTimeout: { min: 0, max: 600 },
+      nonStreamingTimeout: { min: 0, max: 1800 },
+      circuitFailureThreshold: { min: 1, max: 20 },
+      circuitSuccessThreshold: { min: 1, max: 10 },
+      circuitTimeoutSeconds: { min: 0, max: 300 },
+      circuitErrorRateThreshold: { min: 0, max: 100 },
+      circuitMinRequests: { min: 5, max: 100 },
+    };
+
+    // 解析原始值
+    const raw = {
+      maxRetries: parseNum(formData.maxRetries),
+      streamingFirstByteTimeout: parseNum(formData.streamingFirstByteTimeout),
+      streamingIdleTimeout: parseNum(formData.streamingIdleTimeout),
+      nonStreamingTimeout: parseNum(formData.nonStreamingTimeout),
+      circuitFailureThreshold: parseNum(formData.circuitFailureThreshold),
+      circuitSuccessThreshold: parseNum(formData.circuitSuccessThreshold),
+      circuitTimeoutSeconds: parseNum(formData.circuitTimeoutSeconds),
+      circuitErrorRateThreshold: parseNum(formData.circuitErrorRateThreshold),
+      circuitMinRequests: parseNum(formData.circuitMinRequests),
+    };
+
+    // 校验是否超出范围（NaN 也视为无效）
+    const errors: string[] = [];
+    const checkRange = (
+      value: number,
+      range: { min: number; max: number },
+      label: string,
+    ) => {
+      if (isNaN(value) || value < range.min || value > range.max) {
+        errors.push(`${label}: ${range.min}-${range.max}`);
+      }
+    };
+
+    checkRange(
+      raw.maxRetries,
+      ranges.maxRetries,
+      t("proxy.autoFailover.maxRetries", "最大重试次数"),
+    );
+    checkRange(
+      raw.streamingFirstByteTimeout,
+      ranges.streamingFirstByteTimeout,
+      t("proxy.autoFailover.streamingFirstByte", "流式首字节超时"),
+    );
+    checkRange(
+      raw.streamingIdleTimeout,
+      ranges.streamingIdleTimeout,
+      t("proxy.autoFailover.streamingIdle", "流式静默超时"),
+    );
+    checkRange(
+      raw.nonStreamingTimeout,
+      ranges.nonStreamingTimeout,
+      t("proxy.autoFailover.nonStreaming", "非流式超时"),
+    );
+    checkRange(
+      raw.circuitFailureThreshold,
+      ranges.circuitFailureThreshold,
+      t("proxy.autoFailover.failureThreshold", "失败阈值"),
+    );
+    checkRange(
+      raw.circuitSuccessThreshold,
+      ranges.circuitSuccessThreshold,
+      t("proxy.autoFailover.successThreshold", "恢复成功阈值"),
+    );
+    checkRange(
+      raw.circuitTimeoutSeconds,
+      ranges.circuitTimeoutSeconds,
+      t("proxy.autoFailover.timeout", "恢复等待时间"),
+    );
+    checkRange(
+      raw.circuitErrorRateThreshold,
+      ranges.circuitErrorRateThreshold,
+      t("proxy.autoFailover.errorRate", "错误率阈值"),
+    );
+    checkRange(
+      raw.circuitMinRequests,
+      ranges.circuitMinRequests,
+      t("proxy.autoFailover.minRequests", "最小请求数"),
+    );
+
+    if (errors.length > 0) {
+      toast.error(
+        t("proxy.autoFailover.validationFailed", {
+          fields: errors.join("; "),
+          defaultValue: `以下字段超出有效范围: ${errors.join("; ")}`,
+        }),
+      );
+      return;
+    }
+
     try {
       await updateConfig.mutateAsync({
         appType,
         enabled: config.enabled,
         autoFailoverEnabled: formData.autoFailoverEnabled,
-        maxRetries: formData.maxRetries,
-        streamingFirstByteTimeout: formData.streamingFirstByteTimeout,
-        streamingIdleTimeout: formData.streamingIdleTimeout,
-        nonStreamingTimeout: formData.nonStreamingTimeout,
-        circuitFailureThreshold: formData.circuitFailureThreshold,
-        circuitSuccessThreshold: formData.circuitSuccessThreshold,
-        circuitTimeoutSeconds: formData.circuitTimeoutSeconds,
-        circuitErrorRateThreshold: formData.circuitErrorRateThreshold,
-        circuitMinRequests: formData.circuitMinRequests,
+        maxRetries: raw.maxRetries,
+        streamingFirstByteTimeout: raw.streamingFirstByteTimeout,
+        streamingIdleTimeout: raw.streamingIdleTimeout,
+        nonStreamingTimeout: raw.nonStreamingTimeout,
+        circuitFailureThreshold: raw.circuitFailureThreshold,
+        circuitSuccessThreshold: raw.circuitSuccessThreshold,
+        circuitTimeoutSeconds: raw.circuitTimeoutSeconds,
+        circuitErrorRateThreshold: raw.circuitErrorRateThreshold / 100,
+        circuitMinRequests: raw.circuitMinRequests,
       });
       toast.success(
         t("proxy.autoFailover.configSaved", "自动故障转移配置已保存"),
@@ -83,15 +188,17 @@ export function AutoFailoverConfigPanel({
     if (config) {
       setFormData({
         autoFailoverEnabled: config.autoFailoverEnabled,
-        maxRetries: config.maxRetries,
-        streamingFirstByteTimeout: config.streamingFirstByteTimeout,
-        streamingIdleTimeout: config.streamingIdleTimeout,
-        nonStreamingTimeout: config.nonStreamingTimeout,
-        circuitFailureThreshold: config.circuitFailureThreshold,
-        circuitSuccessThreshold: config.circuitSuccessThreshold,
-        circuitTimeoutSeconds: config.circuitTimeoutSeconds,
-        circuitErrorRateThreshold: config.circuitErrorRateThreshold,
-        circuitMinRequests: config.circuitMinRequests,
+        maxRetries: String(config.maxRetries),
+        streamingFirstByteTimeout: String(config.streamingFirstByteTimeout),
+        streamingIdleTimeout: String(config.streamingIdleTimeout),
+        nonStreamingTimeout: String(config.nonStreamingTimeout),
+        circuitFailureThreshold: String(config.circuitFailureThreshold),
+        circuitSuccessThreshold: String(config.circuitSuccessThreshold),
+        circuitTimeoutSeconds: String(config.circuitTimeoutSeconds),
+        circuitErrorRateThreshold: String(
+          Math.round(config.circuitErrorRateThreshold * 100),
+        ),
+        circuitMinRequests: String(config.circuitMinRequests),
       });
     }
   };
@@ -142,13 +249,9 @@ export function AutoFailoverConfigPanel({
                 min="0"
                 max="10"
                 value={formData.maxRetries}
-                onChange={(e) => {
-                  const val = parseInt(e.target.value);
-                  setFormData({
-                    ...formData,
-                    maxRetries: isNaN(val) ? 0 : val,
-                  });
-                }}
+                onChange={(e) =>
+                  setFormData({ ...formData, maxRetries: e.target.value })
+                }
                 disabled={isDisabled}
               />
               <p className="text-xs text-muted-foreground">
@@ -169,13 +272,12 @@ export function AutoFailoverConfigPanel({
                 min="1"
                 max="20"
                 value={formData.circuitFailureThreshold}
-                onChange={(e) => {
-                  const val = parseInt(e.target.value);
+                onChange={(e) =>
                   setFormData({
                     ...formData,
-                    circuitFailureThreshold: isNaN(val) ? 1 : Math.max(1, val),
-                  });
-                }}
+                    circuitFailureThreshold: e.target.value,
+                  })
+                }
                 disabled={isDisabled}
               />
               <p className="text-xs text-muted-foreground">
@@ -208,13 +310,12 @@ export function AutoFailoverConfigPanel({
                 min="0"
                 max="180"
                 value={formData.streamingFirstByteTimeout}
-                onChange={(e) => {
-                  const val = parseInt(e.target.value);
+                onChange={(e) =>
                   setFormData({
                     ...formData,
-                    streamingFirstByteTimeout: isNaN(val) ? 0 : val,
-                  });
-                }}
+                    streamingFirstByteTimeout: e.target.value,
+                  })
+                }
                 disabled={isDisabled}
               />
               <p className="text-xs text-muted-foreground">
@@ -235,13 +336,12 @@ export function AutoFailoverConfigPanel({
                 min="0"
                 max="600"
                 value={formData.streamingIdleTimeout}
-                onChange={(e) => {
-                  const val = parseInt(e.target.value);
+                onChange={(e) =>
                   setFormData({
                     ...formData,
-                    streamingIdleTimeout: isNaN(val) ? 0 : val,
-                  });
-                }}
+                    streamingIdleTimeout: e.target.value,
+                  })
+                }
                 disabled={isDisabled}
               />
               <p className="text-xs text-muted-foreground">
@@ -262,13 +362,12 @@ export function AutoFailoverConfigPanel({
                 min="0"
                 max="1800"
                 value={formData.nonStreamingTimeout}
-                onChange={(e) => {
-                  const val = parseInt(e.target.value);
+                onChange={(e) =>
                   setFormData({
                     ...formData,
-                    nonStreamingTimeout: isNaN(val) ? 0 : val,
-                  });
-                }}
+                    nonStreamingTimeout: e.target.value,
+                  })
+                }
                 disabled={isDisabled}
               />
               <p className="text-xs text-muted-foreground">
@@ -298,13 +397,12 @@ export function AutoFailoverConfigPanel({
                 min="1"
                 max="10"
                 value={formData.circuitSuccessThreshold}
-                onChange={(e) => {
-                  const val = parseInt(e.target.value);
+                onChange={(e) =>
                   setFormData({
                     ...formData,
-                    circuitSuccessThreshold: isNaN(val) ? 1 : Math.max(1, val),
-                  });
-                }}
+                    circuitSuccessThreshold: e.target.value,
+                  })
+                }
                 disabled={isDisabled}
               />
               <p className="text-xs text-muted-foreground">
@@ -322,16 +420,15 @@ export function AutoFailoverConfigPanel({
               <Input
                 id={`timeoutSeconds-${appType}`}
                 type="number"
-                min="10"
+                min="0"
                 max="300"
                 value={formData.circuitTimeoutSeconds}
-                onChange={(e) => {
-                  const val = parseInt(e.target.value);
+                onChange={(e) =>
                   setFormData({
                     ...formData,
-                    circuitTimeoutSeconds: isNaN(val) ? 10 : Math.max(10, val),
-                  });
-                }}
+                    circuitTimeoutSeconds: e.target.value,
+                  })
+                }
                 disabled={isDisabled}
               />
               <p className="text-xs text-muted-foreground">
@@ -352,14 +449,13 @@ export function AutoFailoverConfigPanel({
                 min="0"
                 max="100"
                 step="5"
-                value={Math.round(formData.circuitErrorRateThreshold * 100)}
-                onChange={(e) => {
-                  const val = parseInt(e.target.value);
+                value={formData.circuitErrorRateThreshold}
+                onChange={(e) =>
                   setFormData({
                     ...formData,
-                    circuitErrorRateThreshold: isNaN(val) ? 0.5 : val / 100,
-                  });
-                }}
+                    circuitErrorRateThreshold: e.target.value,
+                  })
+                }
                 disabled={isDisabled}
               />
               <p className="text-xs text-muted-foreground">
@@ -380,13 +476,12 @@ export function AutoFailoverConfigPanel({
                 min="5"
                 max="100"
                 value={formData.circuitMinRequests}
-                onChange={(e) => {
-                  const val = parseInt(e.target.value);
+                onChange={(e) =>
                   setFormData({
                     ...formData,
-                    circuitMinRequests: isNaN(val) ? 5 : Math.max(5, val),
-                  });
-                }}
+                    circuitMinRequests: e.target.value,
+                  })
+                }
                 disabled={isDisabled}
               />
               <p className="text-xs text-muted-foreground">

src/components/proxy/CircuitBreakerConfigPanel.tsx

@@ -7,42 +7,141 @@ import { Label } from "@/components/ui/label";
 import { Button } from "@/components/ui/button";
 import { useState, useEffect } from "react";
 import { toast } from "sonner";
+import { useTranslation } from "react-i18next";
 
 /**
  * 熔断器配置面板
  * 允许用户调整熔断器参数
  */
 export function CircuitBreakerConfigPanel() {
+  const { t } = useTranslation();
   const { data: config, isLoading } = useCircuitBreakerConfig();
   const updateConfig = useUpdateCircuitBreakerConfig();
 
+  // 使用字符串状态以支持完全清空输入框
   const [formData, setFormData] = useState({
-    failureThreshold: 5,
-    successThreshold: 2,
-    timeoutSeconds: 60,
-    errorRateThreshold: 0.5,
-    minRequests: 10,
+    failureThreshold: "5",
+    successThreshold: "2",
+    timeoutSeconds: "60",
+    errorRateThreshold: "50", // 存储百分比值
+    minRequests: "10",
   });
 
   // 当配置加载完成时更新表单数据
   useEffect(() => {
     if (config) {
-      setFormData(config);
+      setFormData({
+        failureThreshold: String(config.failureThreshold),
+        successThreshold: String(config.successThreshold),
+        timeoutSeconds: String(config.timeoutSeconds),
+        errorRateThreshold: String(Math.round(config.errorRateThreshold * 100)),
+        minRequests: String(config.minRequests),
+      });
     }
   }, [config]);
 
   const handleSave = async () => {
+    // 解析数字，返回 NaN 表示无效输入
+    const parseNum = (val: string) => {
+      const trimmed = val.trim();
+      // 必须是纯数字
+      if (!/^-?\d+$/.test(trimmed)) return NaN;
+      return parseInt(trimmed);
+    };
+
+    // 定义各字段的有效范围
+    const ranges = {
+      failureThreshold: { min: 1, max: 20 },
+      successThreshold: { min: 1, max: 10 },
+      timeoutSeconds: { min: 0, max: 300 },
+      errorRateThreshold: { min: 0, max: 100 },
+      minRequests: { min: 5, max: 100 },
+    };
+
+    // 解析原始值
+    const raw = {
+      failureThreshold: parseNum(formData.failureThreshold),
+      successThreshold: parseNum(formData.successThreshold),
+      timeoutSeconds: parseNum(formData.timeoutSeconds),
+      errorRateThreshold: parseNum(formData.errorRateThreshold),
+      minRequests: parseNum(formData.minRequests),
+    };
+
+    // 校验是否超出范围（NaN 也视为无效）
+    const errors: string[] = [];
+    const checkRange = (
+      value: number,
+      range: { min: number; max: number },
+      label: string,
+    ) => {
+      if (isNaN(value) || value < range.min || value > range.max) {
+        errors.push(`${label}: ${range.min}-${range.max}`);
+      }
+    };
+
+    checkRange(
+      raw.failureThreshold,
+      ranges.failureThreshold,
+      t("circuitBreaker.failureThreshold", "失败阈值"),
+    );
+    checkRange(
+      raw.successThreshold,
+      ranges.successThreshold,
+      t("circuitBreaker.successThreshold", "成功阈值"),
+    );
+    checkRange(
+      raw.timeoutSeconds,
+      ranges.timeoutSeconds,
+      t("circuitBreaker.timeoutSeconds", "超时时间"),
+    );
+    checkRange(
+      raw.errorRateThreshold,
+      ranges.errorRateThreshold,
+      t("circuitBreaker.errorRateThreshold", "错误率阈值"),
+    );
+    checkRange(
+      raw.minRequests,
+      ranges.minRequests,
+      t("circuitBreaker.minRequests", "最小请求数"),
+    );
+
+    if (errors.length > 0) {
+      toast.error(
+        t("circuitBreaker.validationFailed", {
+          fields: errors.join("; "),
+          defaultValue: `以下字段超出有效范围: ${errors.join("; ")}`,
+        }),
+      );
+      return;
+    }
+
     try {
-      await updateConfig.mutateAsync(formData);
-      toast.success("熔断器配置已保存", { closeButton: true });
+      await updateConfig.mutateAsync({
+        failureThreshold: raw.failureThreshold,
+        successThreshold: raw.successThreshold,
+        timeoutSeconds: raw.timeoutSeconds,
+        errorRateThreshold: raw.errorRateThreshold / 100,
+        minRequests: raw.minRequests,
+      });
+      toast.success(t("circuitBreaker.configSaved", "熔断器配置已保存"), {
+        closeButton: true,
+      });
     } catch (error) {
-      toast.error("保存失败: " + String(error));
+      toast.error(
+        t("circuitBreaker.saveFailed", "保存失败") + ": " + String(error),
+      );
     }
   };
 
   const handleReset = () => {
     if (config) {
-      setFormData(config);
+      setFormData({
+        failureThreshold: String(config.failureThreshold),
+        successThreshold: String(config.successThreshold),
+        timeoutSeconds: String(config.timeoutSeconds),
+        errorRateThreshold: String(Math.round(config.errorRateThreshold * 100)),
+        minRequests: String(config.minRequests),
+      });
     }
   };
 
@@ -72,10 +171,7 @@ export function CircuitBreakerConfigPanel() {
             max="20"
             value={formData.failureThreshold}
             onChange={(e) =>
-              setFormData({
-                ...formData,
-                failureThreshold: parseInt(e.target.value) || 5,
-              })
+              setFormData({ ...formData, failureThreshold: e.target.value })
             }
           />
           <p className="text-xs text-muted-foreground">
@@ -89,14 +185,11 @@ export function CircuitBreakerConfigPanel() {
           <Input
             id="timeoutSeconds"
             type="number"
-            min="10"
+            min="0"
             max="300"
             value={formData.timeoutSeconds}
             onChange={(e) =>
-              setFormData({
-                ...formData,
-                timeoutSeconds: parseInt(e.target.value) || 60,
-              })
+              setFormData({ ...formData, timeoutSeconds: e.target.value })
             }
           />
           <p className="text-xs text-muted-foreground">
@@ -114,10 +207,7 @@ export function CircuitBreakerConfigPanel() {
             max="10"
             value={formData.successThreshold}
             onChange={(e) =>
-              setFormData({
-                ...formData,
-                successThreshold: parseInt(e.target.value) || 2,
-              })
+              setFormData({ ...formData, successThreshold: e.target.value })
             }
           />
           <p className="text-xs text-muted-foreground">
@@ -134,12 +224,9 @@ export function CircuitBreakerConfigPanel() {
             min="0"
             max="100"
             step="5"
-            value={Math.round(formData.errorRateThreshold * 100)}
+            value={formData.errorRateThreshold}
             onChange={(e) =>
-              setFormData({
-                ...formData,
-                errorRateThreshold: (parseInt(e.target.value) || 50) / 100,
-              })
+              setFormData({ ...formData, errorRateThreshold: e.target.value })
             }
           />
           <p className="text-xs text-muted-foreground">
@@ -157,10 +244,7 @@ export function CircuitBreakerConfigPanel() {
             max="100"
             value={formData.minRequests}
             onChange={(e) =>
-              setFormData({
-                ...formData,
-                minRequests: parseInt(e.target.value) || 10,
-              })
+              setFormData({ ...formData, minRequests: e.target.value })
             }
           />
           <p className="text-xs text-muted-foreground">

src/components/proxy/ProxyPanel.tsx

@@ -38,15 +38,15 @@ export function ProxyPanel() {
   const { data: globalConfig } = useGlobalProxyConfig();
   const updateGlobalConfig = useUpdateGlobalProxyConfig();
 
-  // 监听地址/端口的本地状态
+  // 监听地址/端口的本地状态（端口用字符串以支持完全清空）
   const [listenAddress, setListenAddress] = useState("127.0.0.1");
-  const [listenPort, setListenPort] = useState(15721);
+  const [listenPort, setListenPort] = useState("15721");
 
   // 同步全局配置到本地状态
   useEffect(() => {
     if (globalConfig) {
       setListenAddress(globalConfig.listenAddress);
-      setListenPort(globalConfig.listenPort);
+      setListenPort(String(globalConfig.listenPort));
     }
   }, [globalConfig]);
 
@@ -102,12 +102,57 @@ export function ProxyPanel() {
 
   const handleSaveBasicConfig = async () => {
     if (!globalConfig) return;
+
+    // 校验地址格式（简单的 IP 地址或 localhost 校验）
+    const addressTrimmed = listenAddress.trim();
+    const ipv4Regex = /^(\d{1,3}\.){3}\d{1,3}$/;
+    // 规范化 localhost 为 127.0.0.1
+    const normalizedAddress =
+      addressTrimmed === "localhost" ? "127.0.0.1" : addressTrimmed;
+    const isValidAddress =
+      normalizedAddress === "0.0.0.0" ||
+      (ipv4Regex.test(normalizedAddress) &&
+        normalizedAddress.split(".").every((n) => {
+          const num = parseInt(n);
+          return num >= 0 && num <= 255;
+        }));
+    if (!isValidAddress) {
+      toast.error(
+        t("proxy.settings.invalidAddress", {
+          defaultValue:
+            "地址无效，请输入有效的 IP 地址（如 127.0.0.1）或 localhost",
+        }),
+      );
+      return;
+    }
+
+    // 严格校验端口：必须是纯数字
+    const portTrimmed = listenPort.trim();
+    if (!/^\d+$/.test(portTrimmed)) {
+      toast.error(
+        t("proxy.settings.invalidPort", {
+          defaultValue: "端口无效，请输入 1024-65535 之间的数字",
+        }),
+      );
+      return;
+    }
+    const port = parseInt(portTrimmed);
+    if (isNaN(port) || port < 1024 || port > 65535) {
+      toast.error(
+        t("proxy.settings.invalidPort", {
+          defaultValue: "端口无效，请输入 1024-65535 之间的数字",
+        }),
+      );
+      return;
+    }
     try {
       await updateGlobalConfig.mutateAsync({
         ...globalConfig,
-        listenAddress,
-        listenPort,
+        listenAddress: normalizedAddress,
+        listenPort: port,
       });
+      // 同步更新本地状态为规范化后的值
+      setListenAddress(normalizedAddress);
       toast.success(
         t("proxy.settings.configSaved", { defaultValue: "代理配置已保存" }),
         { closeButton: true },
@@ -133,6 +178,13 @@ export function ProxyPanel() {
     }
   };
 
+  // 格式化地址用于 URL（IPv6 需要方括号）
+  const formatAddressForUrl = (address: string, port: number): string => {
+    const isIPv6 = address.includes(":");
+    const host = isIPv6 ? `[${address}]` : address;
+    return `http://${host}:${port}`;
+  };
+
   return (
     <>
       <section className="space-y-6">
@@ -147,14 +199,14 @@ export function ProxyPanel() {
                 </p>
                 <div className="flex flex-col gap-2 sm:flex-row sm:items-center">
                   <code className="flex-1 text-sm bg-background px-3 py-2 rounded border border-border/60">
-                    http://{status.address}:{status.port}
+                    {formatAddressForUrl(status.address, status.port)}
                   </code>
                   <Button
                     size="sm"
                     variant="outline"
                     onClick={() => {
                       navigator.clipboard.writeText(
-                        `http://${status.address}:${status.port}`,
+                        formatAddressForUrl(status.address, status.port),
                       );
                       toast.success(
                         t("proxy.panel.addressCopied", {
@@ -389,9 +441,12 @@ export function ProxyPanel() {
                     id="listen-address"
                     value={listenAddress}
                     onChange={(e) => setListenAddress(e.target.value)}
-                    placeholder={t("proxy.settings.fields.listenAddress.placeholder", {
-                      defaultValue: "127.0.0.1",
-                    })}
+                    placeholder={t(
+                      "proxy.settings.fields.listenAddress.placeholder",
+                      {
+                        defaultValue: "127.0.0.1",
+                      },
+                    )}
                   />
                   <p className="text-xs text-muted-foreground">
                     {t("proxy.settings.fields.listenAddress.description", {
@@ -411,12 +466,13 @@ export function ProxyPanel() {
                     id="listen-port"
                     type="number"
                     value={listenPort}
-                    onChange={(e) =>
-                      setListenPort(parseInt(e.target.value) || 15721)
-                    }
-                    placeholder={t("proxy.settings.fields.listenPort.placeholder", {
-                      defaultValue: "15721",
-                    })}
+                    onChange={(e) => setListenPort(e.target.value)}
+                    placeholder={t(
+                      "proxy.settings.fields.listenPort.placeholder",
+                      {
+                        defaultValue: "15721",
+                      },
+                    )}
                   />
                   <p className="text-xs text-muted-foreground">
                     {t("proxy.settings.fields.listenPort.description", {