fix: 修一些已知bug

backend/config.py

@@ -4,8 +4,8 @@ from backend import load_config
 _cfg = load_config()
 
 # Global defaults
-DEFAULT_API_URL = _cfg.get("default_api_url", "")
-DEFAULT_API_KEY = _cfg.get("default_api_key", "")
+DEFAULT_API_URL = _cfg.get("api_url", "") or _cfg.get("default_api_url", "")
+DEFAULT_API_KEY = _cfg.get("api_key", "") or _cfg.get("default_api_key", "")
 
 # Model list (for /api/models endpoint)
 MODELS = _cfg.get("models", [])

backend/routes/auth.py

@@ -63,9 +63,13 @@ def _resolve_user():
     if cfg["mode"] == "single":
         user = User.query.filter_by(username="default").first()
         if not user:
-            user = User(username="default", role="admin")
-            db.session.add(user)
-            db.session.commit()
+            try:
+                user = User(username="default", role="admin")
+                db.session.add(user)
+                db.session.commit()
+            except Exception:
+                db.session.rollback()
+                user = User.query.filter_by(username="default").first()
         return user
 
     # Multi-user mode: validate JWT

frontend/package-lock.json

@@ -1152,7 +1152,6 @@
       "resolved": "https://registry.npmmirror.com/marked/-/marked-15.0.12.tgz",
       "integrity": "sha512-8dD6FusOQSrpv9Z1rdNMdlSgQOIP880DHqnohobOmYLElGEqAL/JvxvuxZO16r4HtjTlfPRDC1hbvxC9dPN2nA==",
       "license": "MIT",
-      "peer": true,
       "bin": {
         "marked": "bin/marked.js"
       },
@@ -1199,7 +1198,6 @@
       "integrity": "sha512-QP88BAKvMam/3NxH6vj2o21R6MjxZUAd6nlwAS/pnGvN9IVLocLHxGYIzFhg6fUQ+5th6P4dv4eW9jX3DSIj7A==",
       "dev": true,
       "license": "MIT",
-      "peer": true,
       "engines": {
         "node": ">=12"
       },
@@ -1312,7 +1310,6 @@
       "integrity": "sha512-+Oxm7q9hDoLMyJOYfUYBuHQo+dkAloi33apOPP56pzj+vsdJDzr+j1NISE5pyaAuKL4A3UD34qd0lx5+kfKp2g==",
       "dev": true,
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "esbuild": "^0.25.0",
         "fdir": "^6.4.4",
@@ -1387,7 +1384,6 @@
       "resolved": "https://registry.npmmirror.com/vue/-/vue-3.5.30.tgz",
       "integrity": "sha512-hTHLc6VNZyzzEH/l7PFGjpcTvUgiaPK5mdLkbjrTeWSRcEfxFrv56g/XckIYlE9ckuobsdwqd5mk2g1sBkMewg==",
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "@vue/compiler-dom": "3.5.30",
         "@vue/compiler-sfc": "3.5.30",

frontend/src/main.js

@@ -4,4 +4,10 @@ import './styles/global.css'
 import './styles/highlight.css'
 import 'katex/dist/katex.min.css'
 
+// Initialize theme before app mounts to avoid flash when lazy-loading useTheme
+const savedTheme = localStorage.getItem('theme')
+if (savedTheme === 'dark' || savedTheme === 'light') {
+  document.documentElement.setAttribute('data-theme', savedTheme)
+}
+
 createApp(App).mount('#app')