feat: 每次登录都显示试用用户欢迎弹窗

- 移除 hasWelcomed 标记，不再记录是否已显示
- 试用用户每次打开聊天面板都会看到欢迎弹窗

src/panels/ICHelperPanel.ts

@@ -540,12 +540,10 @@ export async function showICHelperPanel(
           {
             console.log("[ICHelperPanel] 收到 checkWelcomeModal 消息");
             const userInfo = getCachedUserInfo();
-            const hasWelcomed = context.globalState.get("pluginTrialWelcomed");
 
             console.log("[ICHelperPanel] 用户信息:", userInfo);
             console.log("[ICHelperPanel] isPluginTrial:", userInfo?.isPluginTrial);
             console.log("[ICHelperPanel] pluginTrialExpiresAt:", userInfo?.pluginTrialExpiresAt);
-            console.log("[ICHelperPanel] hasWelcomed:", hasWelcomed);
 
             if (userInfo?.isPluginTrial === true) {
               // undefined 表示无效，不显示
@@ -567,16 +565,11 @@ export async function showICHelperPanel(
                 }
               }
 
-              // 未过期或长期有效(null)，且未显示过欢迎弹窗
-              if (!hasWelcomed) {
-                await context.globalState.update("pluginTrialWelcomed", true);
-                console.log("[ICHelperPanel] ✅ 发送 showWelcomeModal 命令到前端");
-                panel.webview.postMessage({
-                  command: "showWelcomeModal",
-                });
-              } else {
-                console.log("[ICHelperPanel] 已显示过欢迎弹窗");
-              }
+              // 未过期或长期有效(null)，显示欢迎弹窗
+              console.log("[ICHelperPanel] ✅ 发送 showWelcomeModal 命令到前端");
+              panel.webview.postMessage({
+                command: "showWelcomeModal",
+              });
             } else {
               console.log("[ICHelperPanel] 非试用用户");
             }