fix(credential-cache): 允许当前进程继续运行当检测到自身锁文件时

当检测到锁文件属于当前进程时不再抛出错误，而是允许继续运行。这解决了当进程意外重启时可能出现的锁文件冲突问题。

src/utils/credential-cache-manager.js

@@ -103,7 +103,12 @@ export class CredentialCacheManager {
                 // 检查进程是否还在运行
                 try {
                     process.kill(pid, 0); // 0 信号仅检查进程存在性
-                    throw new Error(`[CredentialCache] Another instance is running (PID: ${pid}). Please stop it first.`);
+                    // 如果进程存在，检查是否是当前进程
+                    if (pid === process.pid) {
+                        console.log(`[CredentialCache] Lock file belongs to current process (PID: ${pid}), continuing...`);
+                    } else {
+                        throw new Error(`[CredentialCache] Another instance is running (PID: ${pid}). Please stop it first.`);
+                    }
                 } catch (killError) {
                     if (killError.code === 'ESRCH') {
                         // 进程已死亡,可以继续