feat: upgrade OpenAI models from GPT-4.1 to GPT-5 series (#258)

- Update model options: GPT-4.1 → GPT-5, GPT-4.1 Mini → GPT-5 Mini, GPT-4.1 Nano → GPT-5 Nano
- Set gpt-5-nano as new default OpenAI model for better price/performance ratio
- Update web template placeholder to reflect new model naming
- Add .claude/ to .gitignore for local development files

Files changed:
- frontend/src/renderer/src/pages/settings/constants.tsx
- frontend/src/renderer/src/pages/settings/settings.tsx
- opencontext/web/templates/settings.html
- .gitignore

Author: MumuTW

.gitignore

@@ -17,4 +17,5 @@ __pycache__
 .venv/
 uv.lock
 uv.toml
-.idea
+.idea
+.claude/

frontend/src/renderer/src/pages/settings/constants.tsx

@@ -57,16 +57,16 @@ export const ModelInfoList = [
     value: 'openai',
     option: [
       {
-        value: 'gpt-4.1',
-        label: 'GPT-4.1'
+        value: 'gpt-5',
+        label: 'GPT-5'
       },
       {
-        value: 'gpt-4.1-mini',
-        label: 'GPT-4.1 Mini'
+        value: 'gpt-5-mini',
+        label: 'GPT-5 Mini'
       },
       {
-        value: 'gpt-4.1-nano',
-        label: 'GPT-4.1 Nano'
+        value: 'gpt-5-nano',
+        label: 'GPT-5 Nano'
       }
     ]
   },

frontend/src/renderer/src/pages/settings/settings.tsx

@@ -291,7 +291,7 @@ const Settings: FC<SettingsProps> = (props) => {
               initialValues={{
                 modelPlatform: ModelTypeList.Doubao,
                 [`${ModelTypeList.Doubao}-modelId`]: 'doubao-seed-1-6-flash-250828',
-                [`${ModelTypeList.OpenAI}-modelId`]: 'gpt-4.1-nano'
+                [`${ModelTypeList.OpenAI}-modelId`]: 'gpt-5-nano'
               }}>
               <FormItem label="Model platform" field={'modelPlatform'} requiredSymbol={false}>
                 <ModelRadio />

opencontext/web/templates/settings.html

@@ -52,7 +52,7 @@ <h4>LLM 模型配置</h4>
                         </div>
                         <div class="mb-3">
                             <label for="modelId" class="form-label">模型 ID</label>
-                            <input type="text" class="form-control" id="modelId" placeholder="例如: gpt-4" required>
+                            <input type="text" class="form-control" id="modelId" placeholder="例如: gpt-5" required>
                         </div>
                         <div class="mb-3">
                             <label for="baseUrl" class="form-label">Base URL</label>