feat: 工具层及 mcp 大重构 (#252)

* feat: 第一版大重构

* fix: 修复类型问题

* chore: 更新版本到 1.3.2

* Add brave as alternative WebSearchTool

* fix: 修正顺序

* fix: 修复对穷鬼模式的 auto dream 和 session memory 越过

* feat: 穷鬼模式去除 session-summary

* feat: 创建 builtin-tools 包，搬运所有工具实现

将 src/tools/ 下的全部 60 个工具目录迁移至 packages/builtin-tools/src/tools/，
内部导入路径已更新为 src/ alias 模式。

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

* refactor: 更新 src/ 中所有工具引用至 builtin-tools 包，删除 src/tools/

- src/tools.ts 及 178 个 src/ 文件的 import 路径从 ./tools/ 改为 builtin-tools/tools/
- 删除 src/tools/ 整个目录（已迁移至 packages/builtin-tools/）

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

* chore: 添加 builtin-tools 路径别名至 tsconfig，更新 bun.lock

- tsconfig.json 新增 builtin-tools/* 和 builtin-tools 路径映射
- 新增 packages/builtin-tools/src 至 include

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

* refactor: 为 builtin-tools、mcp-client、agent-tools 添加 @claude-code-best 作用域前缀

所有包名及 import 路径统一添加 @claude-code-best/ 前缀：
- builtin-tools → @claude-code-best/builtin-tools
- mcp-client → @claude-code-best/mcp-client
- agent-tools → @claude-code-best/agent-tools

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

* fix: 修复 node 环境没有 bun 的问题

---------

Co-authored-by: Eric-Guo <eric.guocz@gmail.com>
Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>

src/utils/analyzeContext.ts

@@ -32,12 +32,12 @@ import {
 import type {
   AgentDefinition,
   AgentDefinitionsResult,
-} from '../tools/AgentTool/loadAgentsDir.js'
-import { SKILL_TOOL_NAME } from '../tools/SkillTool/constants.js'
+} from '@claude-code-best/builtin-tools/tools/AgentTool/loadAgentsDir.js'
+import { SKILL_TOOL_NAME } from '@claude-code-best/builtin-tools/tools/SkillTool/constants.js'
 import {
   getLimitedSkillToolCommands,
   getSkillToolInfo as getSlashCommandInfo,
-} from '../tools/SkillTool/prompt.js'
+} from '@claude-code-best/builtin-tools/tools/SkillTool/prompt.js'
 import type {
   AssistantMessage,
   AttachmentMessage,
@@ -384,7 +384,7 @@ async function countBuiltInToolTokens(
 
   // Check if tool search is enabled
   const { isToolSearchEnabled } = await import('./toolSearch.js')
-  const { isDeferredTool } = await import('../tools/ToolSearchTool/prompt.js')
+  const { isDeferredTool } = await import('@claude-code-best/builtin-tools/tools/ToolSearchTool/prompt.js')
   const isDeferred = await isToolSearchEnabled(
     model ?? '',
     tools,
@@ -668,7 +668,7 @@ export async function countMcpToolTokens(
   // Check if tool search is enabled - if so, MCP tools are deferred
   // isToolSearchEnabled handles threshold calculation internally for TstAuto mode
   const { isToolSearchEnabled } = await import('./toolSearch.js')
-  const { isDeferredTool } = await import('../tools/ToolSearchTool/prompt.js')
+  const { isDeferredTool } = await import('@claude-code-best/builtin-tools/tools/ToolSearchTool/prompt.js')
 
   const isDeferred = await isToolSearchEnabled(
     model,