From 0a85ff3dfa6332599fde72e8b70dcdc72bc3d5ec Mon Sep 17 00:00:00 2001
From: developer <dev@health.com>
Date: Sat, 4 Apr 2026 22:13:57 +0800
Subject: [PATCH] =?UTF-8?q?feat:=20=E9=80=89=E4=B8=AD=E6=A8=A1=E5=9E=8B?=
 =?UTF-8?q?=E6=8C=81=E4=B9=85=E5=8C=96=E4=B8=BA=E9=BB=98=E8=AE=A4=EF=BC=8C?=
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 =?UTF-8?q?=E9=80=89=E4=B8=AD?=
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Content-Transfer-Encoding: 8bit

---
 js/app.js                  | 9 +++++++--
 js/components/model-bar.js | 9 ++++++---
 2 files changed, 13 insertions(+), 5 deletions(-)

diff --git a/js/app.js b/js/app.js
index 8fbe6b8..757b946 100644
--- a/js/app.js
+++ b/js/app.js
@@ -23,10 +23,12 @@ console.log('[Metona] 模块化版本 v2.1.0 ' + new Date().toISOString());
 // ── 会话管理 ──
 
 function createNewSession() {
+    const selectedModel = document.querySelector('#modelSelect')?.value || '';
+    const defaultModel = selectedModel || state.get('_defaultModel', '');
     return {
         id: generateId(),
         title: '新会话',
-        model: document.querySelector('#modelSelect')?.value || '',
+        model: defaultModel,
         messages: [],
         createdAt: Date.now(),
         updatedAt: Date.now()
@@ -96,7 +98,10 @@ async function init() {
 
         // 7. 恢复上次选择的模型
         const savedModel = await db.getSetting('selectedModel', '');
-        if (savedModel) setSelectedModel(savedModel);
+        if (savedModel) {
+            setSelectedModel(savedModel);
+            state.set('_defaultModel', savedModel);
+        }
 
         // 8. 恢复系统提示词和上下文长度
         const systemPromptEnabled = await db.getSetting('systemPromptEnabled', false);
diff --git a/js/components/model-bar.js b/js/components/model-bar.js
index 3294a96..7ec359a 100644
--- a/js/components/model-bar.js
+++ b/js/components/model-bar.js
@@ -23,6 +23,9 @@ export function initModelBar() {
     modelSelectEl.addEventListener('change', async () => {
         const model = modelSelectEl.value;
         if (db()) await db().saveSetting('selectedModel', model);
+        state.set('_defaultModel', model);
+        const session = state.get(KEYS.CURRENT_SESSION);
+        if (session) session.model = model;
         if (model) {
             await checkModelCapability(model);
         } else {
@@ -70,9 +73,9 @@ export async function loadModels() {
             });
 
         // 恢复上次选择的模型
-        const currentSession = state.get(KEYS.CURRENT_SESSION);
-        if (currentSession?.model) {
-            modelSelectEl.value = currentSession.model;
+        const defaultModel = state.get('_defaultModel', '');
+        if (defaultModel) {
+            modelSelectEl.value = defaultModel;
         }
 
         if (db()) await db().saveSetting('selectedModel', modelSelectEl.value);