feat: 优化API Key批量创建和账户限流状态显示

- 添加 bedrockAccountId 和 rateLimitCost 字段到批量创建 API Key 功能
- 格式化 claudeAccountService 中的日志输出
- 改进账户视图中会话进度条样式，限流状态显示红色

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

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

src/routes/admin.js

@@ -688,10 +688,12 @@ router.post('/api-keys/batch', authenticateAdmin, async (req, res) => {
       claudeConsoleAccountId,
       geminiAccountId,
       openaiAccountId,
+      bedrockAccountId,
       permissions,
       concurrencyLimit,
       rateLimitWindow,
       rateLimitRequests,
+      rateLimitCost,
       enableModelRestriction,
       restrictedModels,
       enableClientRestriction,
@@ -735,10 +737,12 @@ router.post('/api-keys/batch', authenticateAdmin, async (req, res) => {
           claudeConsoleAccountId,
           geminiAccountId,
           openaiAccountId,
+          bedrockAccountId,
           permissions,
           concurrencyLimit,
           rateLimitWindow,
           rateLimitRequests,
+          rateLimitCost,
           enableModelRestriction,
           restrictedModels,
           enableClientRestriction,