修复测试阻塞问题

jest.config.js

diff --git a/jest.config.js b/jest.config.js
index 3f15118..7c61c56 100644
--- a/jest.config.js
+++ b/jest.config.js
@@ -13,7 +13,7 @@
   verbose: true,
   // detectOpenHandles: true, // Enable this flag to debug hanging tests
   // Force exit after all tests complete to avoid hanging on unclosed resources
-  forceExit: true,
+  // forceExit: true,
   // Run tests sequentially to avoid database conflicts
   // Multiple tests share the same database names (root.test for tree model, test for table model)
   maxWorkers: 1, // Run tests one at a time

package.json

diff --git a/package.json b/package.json
index d696a84..5c36a09 100644
--- a/package.json
+++ b/package.json
@@ -14,7 +14,7 @@
     "test:unit": "jest --testPathPatterns=tests/unit",
     "test:e2e": "jest --testPathPatterns=tests/e2e",
     "test:e2e:debug": "node --inspect-brk node_modules/.bin/jest --runInBand --testPathPatterns=tests/e2e",
-    "test:e2e:open-handles": "jest --testPathPatterns=tests/e2e --detectOpenHandles --forceExit=false",
+    "test:e2e:check-handles": "jest --testPathPatterns=tests/e2e --detectOpenHandles --forceExit",
     "test:debug": "node --inspect-brk node_modules/.bin/jest --runInBand",
     "lint": "eslint .",
     "lint:fix": "eslint . --fix",

src/client/BaseSessionPool.ts

diff --git a/src/client/BaseSessionPool.ts b/src/client/BaseSessionPool.ts
index acc7184..691fc76 100644
--- a/src/client/BaseSessionPool.ts
+++ b/src/client/BaseSessionPool.ts
@@ -173,6 +173,11 @@
         }
         reject(new Error("Timeout waiting for available session"));
       }, waitTimeout);
+      
+      // Use unref() so timeout doesn't prevent process exit
+      if (typeof timeoutId === 'object' && 'unref' in timeoutId) {
+        timeoutId.unref();
+      }
 
       this.waitQueue.push((session: Session) => {
         clearTimeout(timeoutId);

src/connection/Connection.ts

diff --git a/src/connection/Connection.ts b/src/connection/Connection.ts
index 1153f69..a18f0e2 100644
--- a/src/connection/Connection.ts
+++ b/src/connection/Connection.ts
@@ -85,6 +85,16 @@
         this.isConnected = false;
       });
 
+      // Unref the underlying socket to allow process exit
+      // This prevents the connection from keeping the process alive
+      if (this.connection && (this.connection as any).connection) {
+        const socket = (this.connection as any).connection;
+        if (socket && typeof socket.unref === 'function') {
+          socket.unref();
+          logger.debug("Socket unref'd to allow process exit");
+        }
+      }
+
       this.client = thrift.createClient(IClientRPCService, this.connection);
 
       await this.openSession();
@@ -182,6 +192,10 @@
             timeoutHandle = setTimeout(() => {
               reject(new Error("Close session timeout"));
             }, 5000);
+            // Use unref() so timeout doesn't prevent process exit
+            if (timeoutHandle && typeof timeoutHandle === 'object' && 'unref' in timeoutHandle) {
+              timeoutHandle.unref();
+            }
           }),
         ]).catch((error) => {
           // Clear timeout if it's still active