fix: 修复专属账号停止调度后仍能使用的问题

- 在 selectAccountForApiKey 方法中为所有专属账号类型添加 schedulable 检查
- 在 _getAllAvailableAccounts 方法中为所有专属账号类型添加 schedulable 检查
- 改进日志输出，显示账号不可用的具体原因（isActive、status、schedulable 状态）

问题描述：
当 Claude Console/OAuth/Bedrock 账号设置为专属账号并停止调度（schedulable=false）后，
系统仍然会使用该账号，没有正确回退到账号池。

修复内容：
1. Claude OAuth 账号：添加 this._isSchedulable(boundAccount.schedulable) 检查
2. Claude Console 账号：添加 this._isSchedulable(boundConsoleAccount.schedulable) 检查
3. Bedrock 账号：添加 this._isSchedulable(boundBedrockAccountResult.data.schedulable) 检查

兼容性：
_isSchedulable 方法已处理向后兼容，当 schedulable 字段为 undefined/null 时默认返回 true

🤖 Generated with [Claude Code](https://claude.ai/code)

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

src/services/unifiedClaudeScheduler.js

@@ -107,7 +107,12 @@ class UnifiedClaudeScheduler {
 
         // 普通专属账户
         const boundAccount = await redis.getClaudeAccount(apiKeyData.claudeAccountId)
-        if (boundAccount && boundAccount.isActive === 'true' && boundAccount.status !== 'error') {
+        if (
+          boundAccount &&
+          boundAccount.isActive === 'true' &&
+          boundAccount.status !== 'error' &&
+          this._isSchedulable(boundAccount.schedulable)
+        ) {
           logger.info(
             `🎯 Using bound dedicated Claude OAuth account: ${boundAccount.name} (${apiKeyData.claudeAccountId}) for API key ${apiKeyData.name}`
           )
@@ -117,7 +122,7 @@ class UnifiedClaudeScheduler {
           }
         } else {
           logger.warn(
-            `⚠️ Bound Claude OAuth account ${apiKeyData.claudeAccountId} is not available, falling back to pool`
+            `⚠️ Bound Claude OAuth account ${apiKeyData.claudeAccountId} is not available (isActive: ${boundAccount?.isActive}, status: ${boundAccount?.status}, schedulable: ${boundAccount?.schedulable}), falling back to pool`
           )
         }
       }
@@ -130,7 +135,8 @@ class UnifiedClaudeScheduler {
         if (
           boundConsoleAccount &&
           boundConsoleAccount.isActive === true &&
-          boundConsoleAccount.status === 'active'
+          boundConsoleAccount.status === 'active' &&
+          this._isSchedulable(boundConsoleAccount.schedulable)
         ) {
           logger.info(
             `🎯 Using bound dedicated Claude Console account: ${boundConsoleAccount.name} (${apiKeyData.claudeConsoleAccountId}) for API key ${apiKeyData.name}`
@@ -141,7 +147,7 @@ class UnifiedClaudeScheduler {
           }
         } else {
           logger.warn(
-            `⚠️ Bound Claude Console account ${apiKeyData.claudeConsoleAccountId} is not available, falling back to pool`
+            `⚠️ Bound Claude Console account ${apiKeyData.claudeConsoleAccountId} is not available (isActive: ${boundConsoleAccount?.isActive}, status: ${boundConsoleAccount?.status}, schedulable: ${boundConsoleAccount?.schedulable}), falling back to pool`
           )
         }
       }
@@ -151,7 +157,11 @@ class UnifiedClaudeScheduler {
         const boundBedrockAccountResult = await bedrockAccountService.getAccount(
           apiKeyData.bedrockAccountId
         )
-        if (boundBedrockAccountResult.success && boundBedrockAccountResult.data.isActive === true) {
+        if (
+          boundBedrockAccountResult.success &&
+          boundBedrockAccountResult.data.isActive === true &&
+          this._isSchedulable(boundBedrockAccountResult.data.schedulable)
+        ) {
           logger.info(
             `🎯 Using bound dedicated Bedrock account: ${boundBedrockAccountResult.data.name} (${apiKeyData.bedrockAccountId}) for API key ${apiKeyData.name}`
           )
@@ -161,7 +171,7 @@ class UnifiedClaudeScheduler {
           }
         } else {
           logger.warn(
-            `⚠️ Bound Bedrock account ${apiKeyData.bedrockAccountId} is not available, falling back to pool`
+            `⚠️ Bound Bedrock account ${apiKeyData.bedrockAccountId} is not available (isActive: ${boundBedrockAccountResult?.data?.isActive}, schedulable: ${boundBedrockAccountResult?.data?.schedulable}), falling back to pool`
           )
         }
       }
@@ -251,7 +261,8 @@ class UnifiedClaudeScheduler {
         boundAccount.isActive === 'true' &&
         boundAccount.status !== 'error' &&
         boundAccount.status !== 'blocked' &&
-        boundAccount.status !== 'temp_error'
+        boundAccount.status !== 'temp_error' &&
+        this._isSchedulable(boundAccount.schedulable)
       ) {
         const isRateLimited = await claudeAccountService.isAccountRateLimited(boundAccount.id)
         if (!isRateLimited) {
@@ -269,7 +280,9 @@ class UnifiedClaudeScheduler {
           ]
         }
       } else {
-        logger.warn(`⚠️ Bound Claude OAuth account ${apiKeyData.claudeAccountId} is not available`)
+        logger.warn(
+          `⚠️ Bound Claude OAuth account ${apiKeyData.claudeAccountId} is not available (isActive: ${boundAccount?.isActive}, status: ${boundAccount?.status}, schedulable: ${boundAccount?.schedulable})`
+        )
       }
     }
 
@@ -281,7 +294,8 @@ class UnifiedClaudeScheduler {
       if (
         boundConsoleAccount &&
         boundConsoleAccount.isActive === true &&
-        boundConsoleAccount.status === 'active'
+        boundConsoleAccount.status === 'active' &&
+        this._isSchedulable(boundConsoleAccount.schedulable)
       ) {
         // 主动触发一次额度检查
         try {
@@ -317,7 +331,7 @@ class UnifiedClaudeScheduler {
         }
       } else {
         logger.warn(
-          `⚠️ Bound Claude Console account ${apiKeyData.claudeConsoleAccountId} is not available`
+          `⚠️ Bound Claude Console account ${apiKeyData.claudeConsoleAccountId} is not available (isActive: ${boundConsoleAccount?.isActive}, status: ${boundConsoleAccount?.status}, schedulable: ${boundConsoleAccount?.schedulable})`
         )
       }
     }
@@ -327,7 +341,11 @@ class UnifiedClaudeScheduler {
       const boundBedrockAccountResult = await bedrockAccountService.getAccount(
         apiKeyData.bedrockAccountId
       )
-      if (boundBedrockAccountResult.success && boundBedrockAccountResult.data.isActive === true) {
+      if (
+        boundBedrockAccountResult.success &&
+        boundBedrockAccountResult.data.isActive === true &&
+        this._isSchedulable(boundBedrockAccountResult.data.schedulable)
+      ) {
         logger.info(
           `🎯 Using bound dedicated Bedrock account: ${boundBedrockAccountResult.data.name} (${apiKeyData.bedrockAccountId})`
         )
@@ -341,7 +359,9 @@ class UnifiedClaudeScheduler {
           }
         ]
       } else {
-        logger.warn(`⚠️ Bound Bedrock account ${apiKeyData.bedrockAccountId} is not available`)
+        logger.warn(
+          `⚠️ Bound Bedrock account ${apiKeyData.bedrockAccountId} is not available (isActive: ${boundBedrockAccountResult?.data?.isActive}, schedulable: ${boundBedrockAccountResult?.data?.schedulable})`
+        )
       }
     }