Remove old model definitions (o1, o3 series) from codebase

Co-authored-by: PeterDaveHello <[email protected]>

Author: Copilot

src/config/index.mjs

@@ -65,10 +65,6 @@ export const chatgptApiModelKeys = [
   'chatgptApi4_1',
   'chatgptApi4_1_mini',
   'chatgptApi4_1_nano',
-  'chatgptApiO1Preview',
-  'chatgptApiO1Mini',
-  'chatgptApiO3Preview',
-  'chatgptApiO3Mini',
   'chatgptApiO4Mini',
   'chatgptApiGpt5',
   'chatgptApiGpt5Mini',
@@ -264,10 +260,6 @@ export const Models = {
   chatgptApi4_1_mini: { value: 'gpt-4.1-mini', desc: 'ChatGPT (GPT-4.1 mini)' },
   chatgptApi4_1_nano: { value: 'gpt-4.1-nano', desc: 'ChatGPT (GPT-4.1 nano)' },
 
-  chatgptApiO1Preview: { value: 'o1-preview', desc: 'ChatGPT (o1-preview)' },
-  chatgptApiO1Mini: { value: 'o1-mini', desc: 'ChatGPT (o1-mini)' },
-  chatgptApiO3Preview: { value: 'o3-preview', desc: 'ChatGPT (o3-preview)' },
-  chatgptApiO3Mini: { value: 'o3-mini', desc: 'ChatGPT (o3-mini)' },
   chatgptApiO4Mini: { value: 'o4-mini', desc: 'ChatGPT (o4-mini)' },
   chatgptApiGpt5: { value: 'gpt-5', desc: 'ChatGPT (gpt-5)' },
   chatgptApiGpt5Mini: { value: 'gpt-5-mini', desc: 'ChatGPT (gpt-5-mini)' },

src/utils/model-name-convert.mjs

@@ -169,11 +169,7 @@ export function isUsingReasoningModel(configOrSession) {
   const modelValue = getModelValue(configOrSession)
   return (
     modelValue &&
-    (modelValue === 'o1-preview' ||
-      modelValue === 'o1-mini' ||
-      modelValue === 'o3-preview' ||
-      modelValue === 'o3-mini' ||
-      modelValue === 'o4-mini' ||
+    (modelValue === 'o4-mini' ||
       modelValue === 'gpt-5' ||
       modelValue === 'gpt-5-mini' ||
       modelValue === 'gpt-5-nano')