refactor: 重组 components/ 和 pages/ 文件结构，按职责分层

components/ 拆为三层：
  - providers/   — 状态管理（App/Theme/SettingsProvider）
  - shell/       — 应用外壳（Layout/NavBar/PageDispatcher）
  - ui/          — 通用 UI 原子（FloatingPanel/LegalTextModal）

pages/ 重命名 + 重组：
  - headers/ → panels/        NavBar 触发的面板页
  - login/   → auth/          认证模块（含注册/忘记密码）
  - settings/blocks/ → sections/
  - home/components/ → panels/ features/ controls/ hooks/
    按职责分：panels(布局壳) + features(功能面板) + controls(表单控件) + hooks

其他清理：
  - 删除空占位 Test3.tsx
  - HomeContext 从 HomeContent 拆出独立文件
  - uploadValidation 内联到 ImageInput
  - 修复过时注释（useUI → controls）

src/pages/settings/sections/StoragePathSetting.tsx

@@ -0,0 +1,194 @@
+// ============================================================
+// StoragePathSetting — 存储路径设置区块
+//
+// 个人版：仅"大模型产物存储仓库路径"
+// 企业版：额外"团队创作存储仓库路径"
+// ============================================================
+
+import { useState, useCallback } from 'react';
+import { Card, Button, Input, Typography, Space, App } from 'antd';
+import { FolderOpenOutlined, DeleteOutlined, EditOutlined } from '@ant-design/icons';
+import type { Edition } from '@shared/types';
+import { useSettings } from '@/components/providers/SettingsProvider';
+import { hasIpc, safeIpcInvoke } from '@/utils/ipc';
+import { BIDIRECTIONAL } from '@shared/constants/ipc-channels';
+
+const { Text, Paragraph } = Typography;
+
+interface StoragePathSettingProps {
+   edition: Edition;
+}
+
+/** 单行路径选择器 */
+function PathRow({
+   label,
+   path,
+   onChange,
+   onClear,
+}: {
+   label: string;
+   path: string;
+   onChange: (path: string) => void;
+   onClear: () => void;
+}) {
+   const [editing, setEditing] = useState(false);
+   const [inputValue, setInputValue] = useState(path);
+   const { message } = App.useApp();
+
+   const handleSelectFolder = useCallback(async () => {
+      if (!hasIpc()) {
+         // 非 Electron 环境 → 切换为手动输入模式
+         setInputValue(path);
+         setEditing(true);
+         return;
+      }
+
+      try {
+         const result = (await safeIpcInvoke(BIDIRECTIONAL.FILE_DIALOG, {
+            title: label,
+            defaultPath: path || undefined,
+            properties: ['openDirectory'],
+         })) as { canceled: boolean; filePaths: string[] } | undefined;
+
+         if (!result || result.canceled || result.filePaths.length === 0) return;
+
+         const selectedPath = result.filePaths[0];
+         onChange(selectedPath);
+         message.success('路径已更新');
+      } catch {
+         message.error('选择文件夹失败');
+      }
+   }, [label, path, onChange, message]);
+
+   const handleSaveInput = useCallback(() => {
+      onChange(inputValue.trim());
+      setEditing(false);
+      if (inputValue.trim()) {
+         message.success('路径已更新');
+      }
+   }, [inputValue, onChange, message]);
+
+   const handleCancelEdit = useCallback(() => {
+      setInputValue(path);
+      setEditing(false);
+   }, [path]);
+
+   return (
+      <div className="flex flex-col gap-1.5">
+         <Text type="secondary" className="text-xs">
+            {label}
+         </Text>
+
+         {editing ? (
+            <Space.Compact className="w-full">
+               <Input
+                  size="small"
+                  value={inputValue}
+                  onChange={(e) => setInputValue(e.target.value)}
+                  onPressEnter={handleSaveInput}
+                  placeholder="请输入或粘贴路径"
+                  className="flex-1"
+               />
+               <Button size="small" type="primary" onClick={handleSaveInput}>
+                  确定
+               </Button>
+               <Button size="small" onClick={handleCancelEdit}>
+                  取消
+               </Button>
+            </Space.Compact>
+         ) : path ? (
+            <div className="flex items-center gap-2">
+               <Paragraph
+                  className="mb-0! flex-1 min-w-0"
+                  style={{ maxWidth: 240 }}
+                  ellipsis={{ rows: 1, tooltip: path }}
+               >
+                  <Text className="text-xs" style={{ fontFamily: 'monospace' }}>
+                     {path}
+                  </Text>
+               </Paragraph>
+               <Button
+                  size="small"
+                  type="text"
+                  icon={<EditOutlined />}
+                  onClick={() => {
+                     setInputValue(path);
+                     setEditing(true);
+                  }}
+                  title="手动编辑"
+               />
+               <Button
+                  size="small"
+                  type="text"
+                  danger
+                  icon={<DeleteOutlined />}
+                  onClick={onClear}
+                  title="清除路径"
+               />
+            </div>
+         ) : (
+            <div className="flex items-center gap-2">
+               <Text type="secondary" className="text-xs italic flex-1">
+                  未设置
+               </Text>
+               <Button
+                  size="small"
+                  type="text"
+                  icon={<EditOutlined />}
+                  onClick={() => {
+                     setInputValue('');
+                     setEditing(true);
+                  }}
+                  title="手动输入"
+               />
+            </div>
+         )}
+
+         {!editing && (
+            <Button
+               size="small"
+               icon={<FolderOpenOutlined />}
+               onClick={handleSelectFolder}
+               className="self-start mt-1"
+            >
+               {hasIpc() ? '选择文件夹' : '手动输入路径'}
+            </Button>
+         )}
+      </div>
+   );
+}
+
+export function StoragePathSetting({ edition }: StoragePathSettingProps) {
+   const {
+      outputPath,
+      teamRepoPath,
+      setOutputPath,
+      setTeamRepoPath,
+      clearOutputPath,
+      clearTeamRepoPath,
+   } = useSettings();
+
+   const isEnterprise = edition === 'enterprise';
+
+   return (
+      <Card size="small" title="存储路径设置" className="rounded-md!">
+         <div className="flex flex-col gap-4">
+            <PathRow
+               label="大模型产物存储仓库路径"
+               path={outputPath}
+               onChange={setOutputPath}
+               onClear={clearOutputPath}
+            />
+
+            {isEnterprise && (
+               <PathRow
+                  label="团队创作存储仓库路径"
+                  path={teamRepoPath}
+                  onChange={setTeamRepoPath}
+                  onClear={clearTeamRepoPath}
+               />
+            )}
+         </div>
+      </Card>
+   );
+}