refactor(core,server): 简化配置加载，移除 workdir 参数

Provider 和 Agent 配置统一从全局目录加载，无需传递 workdir：
- ProviderRegistry.init() 不再需要 workdir 参数
- AgentRegistry.init() 不再需要 workdir 参数
- 配置文件路径统一使用 ~/.ai-terminal-assistant/

packages/core/src/agent/registry.ts

@@ -31,11 +31,11 @@ export class AgentRegistry {
    * 完整初始化 - 加载用户配置
    * 用户配置可以覆盖预设 Agent 的设置
    */
-  async init(workdir: string): Promise<void> {
+  async init(): Promise<void> {
     if (this.initialized) return;
 
-    // 加载用户配置
+    // 加载用户配置（从 ~/.ai-terminal-assistant/agents.json）
-    this.userConfig = await loadAgentConfig(workdir);
+    this.userConfig = await loadAgentConfig('');
     if (this.userConfig) {
       this.globalConfig = this.userConfig.defaults ?? null;
 

packages/core/src/provider/config.ts

@@ -7,34 +7,25 @@
 import { existsSync } from 'node:fs';
 import { readFile, writeFile, mkdir } from 'node:fs/promises';
 import { join } from 'node:path';
-import { homedir } from 'node:os';
 import type { ProvidersConfigFile, CustomProviderDefinition, ProviderConfig } from './types.js';
-
+import { getConfigDir as getGlobalConfigDir } from '../constants/paths.js';
-/** 配置目录名 */
-const CONFIG_DIR = '.ai-terminal-assistant';
 
 /** 配置文件名 */
 const CONFIG_FILE = 'providers.json';
 
-/**
- * 获取配置目录路径
- */
-export function getConfigDir(workdir?: string): string {
-  return workdir ? join(workdir, CONFIG_DIR) : join(homedir(), CONFIG_DIR);
-}
-
 /**
  * 获取配置文件路径
+ * 始终使用全局配置目录 ~/.ai-terminal-assistant/
  */
-export function getConfigPath(workdir?: string): string {
+export function getConfigPath(): string {
-  return join(getConfigDir(workdir), CONFIG_FILE);
+  return join(getGlobalConfigDir(), CONFIG_FILE);
 }
 
 /**
  * 加载提供商配置
  */
-export async function loadProvidersConfig(workdir?: string): Promise<ProvidersConfigFile> {
+export async function loadProvidersConfig(): Promise<ProvidersConfigFile> {
-  const configPath = getConfigPath(workdir);
+  const configPath = getConfigPath();
 
   if (!existsSync(configPath)) {
     return { providers: {}, configs: {} };
@@ -56,12 +47,9 @@ export async function loadProvidersConfig(workdir?: string): Promise<ProvidersCo
 /**
  * 保存提供商配置
  */
-export async function saveProvidersConfig(
+export async function saveProvidersConfig(config: ProvidersConfigFile): Promise<void> {
-  config: ProvidersConfigFile,
+  const configDir = getGlobalConfigDir();
-  workdir?: string
+  const configPath = getConfigPath();
-): Promise<void> {
-  const configDir = getConfigDir(workdir);
-  const configPath = getConfigPath(workdir);
 
   // 确保目录存在
   if (!existsSync(configDir)) {

packages/core/src/provider/index.ts

@@ -41,7 +41,6 @@ export {
   loadProvidersConfig,
   saveProvidersConfig,
   resolveApiKey,
-  getConfigDir,
   getConfigPath,
 } from './config.js';
 

packages/core/src/provider/registry.ts

@@ -46,9 +46,6 @@ export class ProviderRegistry {
   /** 是否已完全初始化（包括用户配置） */
   private fullyInitialized = false;
 
-  /** 工作目录 */
-  private workdir?: string;
-
   constructor() {
     // 同步初始化内置提供商（不需要异步加载）
     this.initBuiltinProviders();
@@ -70,13 +67,11 @@ export class ProviderRegistry {
    * 完整初始化 Registry
    * 加载用户配置（自定义提供商和配置）
    */
-  async init(workdir?: string): Promise<void> {
+  async init(): Promise<void> {
     if (this.fullyInitialized) return;
 
-    this.workdir = workdir;
+    // 加载用户配置（从 ~/.ai-terminal-assistant/providers.json）
-
+    const config = await loadProvidersConfig();
-    // 加载用户配置
-    const config = await loadProvidersConfig(workdir);
 
     // 加载自定义提供商
     if (config.providers) {
@@ -414,7 +409,7 @@ export class ProviderRegistry {
   /**
    * 保存配置到文件
    */
-  async saveConfig(workdir?: string): Promise<void> {
+  async saveConfig(): Promise<void> {
     this.ensureInitialized();
 
     const config = {
@@ -422,13 +417,13 @@ export class ProviderRegistry {
       configs: Object.fromEntries(this.configs),
     };
 
-    await saveProvidersConfig(config, workdir ?? this.workdir);
+    await saveProvidersConfig(config);
   }
 
   /**
    * 重新加载配置
    */
-  async reloadConfig(workdir?: string): Promise<void> {
+  async reloadConfig(): Promise<void> {
     this.fullyInitialized = false;
     this.configs.clear();
     this.customDefinitions.clear();
@@ -440,7 +435,7 @@ export class ProviderRegistry {
       }
     }
 
-    await this.init(workdir ?? this.workdir);
+    await this.init();
   }
 }
 

packages/server/src/agent/adapter.ts

@@ -156,7 +156,7 @@ interface PermissionManager {
  * Provider Registry 接口
  */
 interface ProviderRegistryInterface {
-  init(workdir?: string): Promise<void>;
+  init(): Promise<void>;
   isInitialized(): boolean;
 }
 
@@ -164,7 +164,7 @@ interface ProviderRegistryInterface {
  * Agent Registry 接口
  */
 interface AgentRegistryInterface {
-  init(workdir: string): Promise<void>;
+  init(): Promise<void>;
   isInitialized(): boolean;
 }
 
@@ -221,22 +221,18 @@ export async function initCore(): Promise<boolean> {
       return false;
     }
 
-    // 获取服务器配置的工作目录
-    const config = getConfig();
-    const workdir = config.workdir;
-
     // 初始化 ProviderRegistry（加载用户配置）
     const providerRegistry = core.getProviderRegistry();
     if (!providerRegistry.isInitialized()) {
-      await providerRegistry.init(workdir);
+      await providerRegistry.init();
-      console.log('[Agent] ProviderRegistry initialized with workdir:', workdir);
+      console.log('[Agent] ProviderRegistry initialized');
     }
 
     // 初始化 AgentRegistry（加载用户自定义 Agent 配置）
     const agentRegistry = core.agentRegistry;
     if (!agentRegistry.isInitialized()) {
-      await agentRegistry.init(workdir);
+      await agentRegistry.init();
-      console.log('[Agent] AgentRegistry initialized with workdir:', workdir);
+      console.log('[Agent] AgentRegistry initialized');
     }
 
     coreModule = core;

packages/server/src/routes/agents.ts

@@ -74,7 +74,7 @@ interface AgentConfigFile {
 // Core Agent 模块类型
 interface AgentModule {
   agentRegistry: {
-    init: (workdir: string) => Promise<void>;
+    init: () => Promise<void>;
     get: (name: string) => AgentInfo | undefined;
     list: () => AgentInfo[];
   };
@@ -152,8 +152,7 @@ async function ensureRegistryInitialized(): Promise<boolean> {
   if (!module) return false;
 
   if (!initialized) {
-    const config = getConfig();
+    await module.agentRegistry.init();
-    await module.agentRegistry.init(config.workdir);
     initialized = true;
   }
 

packages/server/src/routes/providers.ts

@@ -247,7 +247,7 @@ providersRouter.post('/', async (c) => {
 
     const registry = core.getProviderRegistry();
     registry.registerCustom(body);
-    await registry.saveConfig(getConfig().workdir);
+    await registry.saveConfig();
 
     return c.json({
       success: true,
@@ -285,7 +285,7 @@ providersRouter.put('/:id', async (c) => {
     }
 
     registry.setConfig(id, { ...body, id });
-    await registry.saveConfig(getConfig().workdir);
+    await registry.saveConfig();
 
     return c.json({
       success: true,
@@ -321,7 +321,7 @@ providersRouter.delete('/:id', async (c) => {
       return c.json({ success: false, error: `Provider not found: ${id}` }, 404);
     }
 
-    await registry.saveConfig(getConfig().workdir);
+    await registry.saveConfig();
 
     return c.json({
       success: true,
@@ -365,7 +365,7 @@ providersRouter.post('/:id/models', async (c) => {
 
     const registry = core.getProviderRegistry();
     registry.addCustomModel(providerId, body);
-    await registry.saveConfig(getConfig().workdir);
+    await registry.saveConfig();
 
     return c.json({
       success: true,
@@ -408,7 +408,7 @@ providersRouter.delete('/:id/models/:modelId', async (c) => {
       );
     }
 
-    await registry.saveConfig(getConfig().workdir);
+    await registry.saveConfig();
 
     return c.json({
       success: true,