chore(codex): hide 1M context window toggle in provider edit form

Codex models no longer accept model_context_window=1000000, so the
toggle and its paired auto-compact-limit input are commented out in
the provider edit form. State hooks, helper imports, and i18n keys
are preserved so the UI can be restored in one batch if upstream
support returns. The TOML editor remains visible, allowing manual
edits if needed.

src/components/providers/forms/CodexConfigSections.tsx

@@ -1,17 +1,17 @@
-import React, {
-  useCallback,
-  useEffect,
-  useMemo,
-  useRef,
-  useState,
-} from "react";
+// NOTE: Codex 1M 上下文 UI 已暂时隐藏（详见下方 CodexConfigSection 内 JSX 注释）。
+// 如需恢复，请同时：
+//   - 在下方 React import 中加回 `useMemo`
+//   - 取消下面 `@/utils/providerConfigUtils` import 的注释
+import React, { useCallback, useEffect, useRef, useState } from "react";
 import { useTranslation } from "react-i18next";
 import JsonEditor from "@/components/JsonEditor";
+/*
 import {
   extractCodexTopLevelInt,
   setCodexTopLevelInt,
   removeCodexTopLevelField,
 } from "@/utils/providerConfigUtils";
+*/
 
 interface CodexAuthSectionProps {
   value: string;
@@ -144,6 +144,8 @@ export const CodexConfigSection: React.FC<CodexConfigSectionProps> = ({
     [onChange],
   );
 
+  // Codex 1M 上下文相关状态/回调暂时禁用——见同文件下方 JSX 注释处的恢复说明。
+  /*
   // Parse toggle states from TOML text
   const toggleStates = useMemo(() => {
     const contextWindow = extractCodexTopLevelInt(
@@ -211,6 +213,7 @@ export const CodexConfigSection: React.FC<CodexConfigSectionProps> = ({
   useEffect(() => {
     return () => clearTimeout(compactTimerRef.current);
   }, []);
+  */
 
   return (
     <div className="space-y-2">
@@ -249,6 +252,8 @@ export const CodexConfigSection: React.FC<CodexConfigSectionProps> = ({
         </p>
       )}
 
+      {/* Codex 1M 上下文 UI 已隐藏：模型不再支持该字段。
+          恢复方法：(1) 取消本段 JSX 注释；(2) 取消文件顶部 import 中 useMemo / extractCodexTopLevelInt / setCodexTopLevelInt / removeCodexTopLevelField 的注释；(3) 取消下方 toggleStates / compactTimerRef / handleContextWindowToggle / handleCompactLimitChange / cleanup useEffect 的注释。
       <div className="flex flex-wrap items-center gap-x-4 gap-y-1">
         <label className="inline-flex items-center gap-2 text-sm text-muted-foreground cursor-pointer">
           <input
@@ -273,6 +278,7 @@ export const CodexConfigSection: React.FC<CodexConfigSectionProps> = ({
           />
         </label>
       </div>
+      */}
 
       <JsonEditor
         value={localValue}