重构 constants.js：移除动态命令前缀检测逻辑，改为使用固定命令前缀'npx -y -f dpml-prompt'，简化代码结构并提高一致性。同时更新 InitCommand 以使用新的命令前缀，删除不再使用的 saveCommandPrefix 函数。移除 command-prefix.e2e.test.js 测试文件，确保代码整洁。

src/tests/commands/command-prefix.e2e.test.js

@@ -1,200 +0,0 @@
-const path = require('path')
-const fs = require('fs-extra')
-const { execSync } = require('child_process')
-const tmp = require('tmp')
-
-const PromptXConfig = require('../../lib/utils/promptxConfig')
-const PouchCLI = require('../../lib/core/pouch/PouchCLI')
-
-describe('命令前缀动态检测 E2E', () => {
-  let tempDir
-  let originalCwd
-  let config
-
-  beforeEach(async () => {
-    // 创建临时目录
-    tempDir = tmp.dirSync({ unsafeCleanup: true }).name
-    originalCwd = process.cwd()
-    process.chdir(tempDir)
-    
-    config = new PromptXConfig(tempDir)
-    
-    // 静默console输出
-    jest.spyOn(console, 'log').mockImplementation(() => {})
-    jest.spyOn(console, 'warn').mockImplementation(() => {})
-    
-    // 清除constants.js的缓存，避免测试间污染
-    delete require.cache[require.resolve('../../constants.js')]
-    const { clearCache } = require('../../constants.js')
-    clearCache()
-  })
-
-  afterEach(async () => {
-    process.chdir(originalCwd)
-    try {
-      await fs.remove(tempDir)
-    } catch (error) {
-      // 忽略清理失败
-    }
-    
-    // 恢复console输出
-    jest.restoreAllMocks()
-  })
-
-  describe('init命令保存命令前缀', () => {
-    test('npx方式调用时应保存npx前缀', async () => {
-      // 模拟npx调用init命令
-      process.argv = ['node', 'npx', 'dpml-prompt@snapshot', 'init']
-      process.env.npm_execpath = '/usr/local/lib/node_modules/npm/bin/npx-cli.js'
-      
-      // 导入并执行init命令
-      const cli = new PouchCLI()
-      
-      await cli.execute('init', [])
-      
-      // 验证保存的命令前缀
-      const savedPrefix = await config.readText('command-prefix')
-      expect(savedPrefix).toBe('npx dpml-prompt@snapshot')
-    })
-
-    test('全局安装调用时应保存直接前缀', async () => {
-      // 模拟全局安装调用
-      process.argv = ['node', '/usr/local/bin/dpml-prompt', 'init']
-      delete process.env.npm_execpath
-      
-      const cli = new PouchCLI()
-      
-      await cli.execute('init', [])
-      
-      const savedPrefix = await config.readText('command-prefix')
-      expect(savedPrefix).toBe('dpml-prompt')
-    })
-
-    test('指定版本号时应正确保存', async () => {
-      process.argv = ['node', 'npx', 'dpml-prompt@latest', 'init']
-      process.env.npm_execpath = '/usr/local/lib/node_modules/npm/bin/npx-cli.js'
-      
-      const cli = new PouchCLI()
-      
-      await cli.execute('init', [])
-      
-      const savedPrefix = await config.readText('command-prefix')
-      expect(savedPrefix).toBe('npx dpml-prompt@latest')
-    })
-  })
-
-  describe('constants.js动态读取', () => {
-    test('环境变量应能覆盖配置文件', async () => {
-      // 保存配置文件
-      await config.writeText('command-prefix', 'npx dpml-prompt@snapshot')
-      
-      // 设置环境变量
-      process.env.DPML_COMMAND_PREFIX = 'my-custom-prefix'
-      
-      delete require.cache[require.resolve('../../constants.js')]
-      const constants = require('../../constants.js')
-      
-      const commands = constants.getCommands()
-      expect(commands.INIT).toBe('my-custom-prefix init')
-      
-      // 清理环境变量
-      delete process.env.DPML_COMMAND_PREFIX
-    })
-  })
-
-  describe('各种命令格式解析', () => {
-    const testCases = [
-      {
-        name: 'npx最新版本',
-        argv: ['node', 'npx', 'dpml-prompt', 'init'],
-        hasNpxEnv: true,
-        expected: 'npx dpml-prompt'
-      },
-      {
-        name: 'npx指定版本', 
-        argv: ['node', 'npx', 'dpml-prompt@0.1.0', 'init'],
-        hasNpxEnv: true,
-        expected: 'npx dpml-prompt@0.1.0'
-      },
-      {
-        name: 'npx snapshot版本',
-        argv: ['node', 'npx', 'dpml-prompt@snapshot', 'init'],
-        hasNpxEnv: true,
-        expected: 'npx dpml-prompt@snapshot'
-      },
-      {
-        name: '全局安装',
-        argv: ['node', 'dpml-prompt', 'init'],
-        hasNpxEnv: false,
-        expected: 'dpml-prompt'
-      },
-      {
-        name: '开发模式',
-        argv: ['node', '/Users/dev/PromptX/src/bin/promptx.js', 'init'],
-        hasNpxEnv: false,
-        expected: 'dpml-prompt'
-      },
-      {
-        name: 'npx -y 参数',
-        argv: ['node', 'npx', '-y', 'dpml-prompt', 'init'],
-        hasNpxEnv: true,
-        expected: 'npx -y dpml-prompt'
-      },
-      {
-        name: 'npx 复杂参数',
-        argv: ['node', 'npx', '--yes', '--registry=https://registry.npm.taobao.org', 'dpml-prompt@latest', 'init'],
-        hasNpxEnv: true,
-        expected: 'npx --yes --registry=https://registry.npm.taobao.org dpml-prompt@latest'
-      },
-      {
-        name: 'pnpm dlx',
-        argv: ['node', 'pnpm', 'dlx', 'dpml-prompt@snapshot', 'init'],
-        hasNpxEnv: false,
-        expected: 'pnpm dlx dpml-prompt@snapshot'
-      },
-      {
-        name: 'yarn dlx',
-        argv: ['node', 'yarn', 'dlx', 'dpml-prompt', 'init'],
-        hasNpxEnv: false,
-        expected: 'yarn dlx dpml-prompt'
-      }
-    ]
-
-    testCases.forEach(({ name, argv, hasNpxEnv, expected }) => {
-      test(`${name}: ${argv[1]} → ${expected}`, async () => {
-        process.argv = argv
-        
-        // 根据测试配置设置环境变量
-        if (hasNpxEnv) {
-          process.env.npm_execpath = '/usr/local/lib/node_modules/npm/bin/npx-cli.js'
-        } else {
-          delete process.env.npm_execpath
-        }
-        
-        const cli = new PouchCLI()
-        
-        await cli.execute('init', [])
-        
-        const savedPrefix = await config.readText('command-prefix')
-        expect(savedPrefix).toBe(expected)
-      })
-    })
-  })
-
-  describe('缓存性能', () => {
-    test('第二次调用应使用缓存，不重新检测', async () => {
-      // 第一次调用保存配置
-      await config.writeText('command-prefix', 'npx dpml-prompt@snapshot')
-      
-      // 模拟多次调用constants
-      delete require.cache[require.resolve('../../constants.js')]
-      const constants1 = require('../../constants.js')
-      
-      delete require.cache[require.resolve('../../constants.js')]
-      const constants2 = require('../../constants.js')
-      
-      // 两次调用应该返回相同结果
-      expect(constants1.getCommands().INIT).toBe(constants2.getCommands().INIT)
-    })
-  })
-})