refactor(codex): remove configuration wizard and unify provider setup experience

- Remove CodexQuickWizardModal component (~300 lines)
- Add "Custom (Blank Template)" preset with annotated TOML template
- Unify configuration experience across Claude/Codex/Gemini
- Remove wizard-related i18n keys, keep apiUrlLabel for CodexFormFields
- Simplify component integration by removing wizard state management

This change reduces code complexity by ~250 lines while providing better
user education through commented configuration templates in Chinese.

Users can now:
1. Select "Custom (Blank Template)" preset
2. See annotated TOML template with inline documentation
3. Follow step-by-step comments to configure custom providers

BREAKING CHANGE: Configuration wizard UI removed, replaced with template-based approach

src/components/providers/forms/CodexConfigEditor.tsx

@@ -1,6 +1,5 @@
 import React, { useState, useEffect } from "react";
 import { CodexAuthSection, CodexConfigSection } from "./CodexConfigSections";
-import { CodexQuickWizardModal } from "./CodexQuickWizardModal";
 import { CodexCommonConfigModal } from "./CodexCommonConfigModal";
 
 interface CodexConfigEditorProps {
@@ -27,14 +26,6 @@ interface CodexConfigEditorProps {
   authError: string;
 
   configError: string; // config.toml 错误提示
-
-  onWebsiteUrlChange?: (url: string) => void; // 更新网址回调
-
-  isTemplateModalOpen?: boolean; // 模态框状态
-
-  setIsTemplateModalOpen?: (open: boolean) => void; // 设置模态框状态
-
-  onNameChange?: (name: string) => void; // 更新供应商名称回调
 }
 
 const CodexConfigEditor: React.FC<CodexConfigEditorProps> = ({
@@ -50,21 +41,9 @@ const CodexConfigEditor: React.FC<CodexConfigEditorProps> = ({
   commonConfigError,
   authError,
   configError,
-  onWebsiteUrlChange,
-  onNameChange,
-  isTemplateModalOpen: externalTemplateModalOpen,
-  setIsTemplateModalOpen: externalSetTemplateModalOpen,
 }) => {
   const [isCommonConfigModalOpen, setIsCommonConfigModalOpen] = useState(false);
 
-  // Use internal state or external state
-  const [internalTemplateModalOpen, setInternalTemplateModalOpen] =
-    useState(false);
-  const isTemplateModalOpen =
-    externalTemplateModalOpen ?? internalTemplateModalOpen;
-  const setIsTemplateModalOpen =
-    externalSetTemplateModalOpen ?? setInternalTemplateModalOpen;
-
   // Auto-open common config modal if there's an error
   useEffect(() => {
     if (commonConfigError && !isCommonConfigModalOpen) {
@@ -72,23 +51,6 @@ const CodexConfigEditor: React.FC<CodexConfigEditorProps> = ({
     }
   }, [commonConfigError, isCommonConfigModalOpen]);
 
-  const handleQuickWizardApply = (
-    auth: string,
-    config: string,
-    extras: { websiteUrl?: string; displayName?: string },
-  ) => {
-    onAuthChange(auth);
-    onConfigChange(config);
-
-    if (onWebsiteUrlChange && extras.websiteUrl) {
-      onWebsiteUrlChange(extras.websiteUrl);
-    }
-
-    if (onNameChange && extras.displayName) {
-      onNameChange(extras.displayName);
-    }
-  };
-
   return (
     <div className="space-y-6">
       {/* Auth JSON Section */}
@@ -110,13 +72,6 @@ const CodexConfigEditor: React.FC<CodexConfigEditorProps> = ({
         configError={configError}
       />
 
-      {/* Quick Wizard Modal */}
-      <CodexQuickWizardModal
-        isOpen={isTemplateModalOpen}
-        onClose={() => setIsTemplateModalOpen(false)}
-        onApply={handleQuickWizardApply}
-      />
-
       {/* Common Config Modal */}
       <CodexCommonConfigModal
         isOpen={isCommonConfigModalOpen}