refactor(core): 移除 BASH_TOOL_EXTRA_NOTES 和 GIT_COMMIT_AND_PR_CREATION_INSTRUCTION

- 从模板引擎中移除这两个函数的注册
- 从 bash 工具描述中移除对应的模板变量
- 删除不再需要的 git-instructions.txt 文件
- 更新单元测试，移除相关测试用例

packages/core/tests/unit/template/renderer.test.ts

@@ -1,9 +1,8 @@
-import { describe, it, expect, beforeEach, afterEach } from 'vitest';
+import { describe, it, expect } from 'vitest';
 import {
   renderTemplate,
   renderPromptTemplate,
   createToolDescriptionContext,
-  clearGitInstructionsCache,
 } from '../../../src/template/renderer.js';
 import type { ExtendedTemplateContext } from '../../../src/template/types.js';
 import {
@@ -160,14 +159,6 @@ describe('Template Renderer - 模板渲染器', () => {
 });
 
 describe('createToolDescriptionContext - 工具描述上下文', () => {
-  beforeEach(() => {
-    clearGitInstructionsCache();
-  });
-
-  afterEach(() => {
-    clearGitInstructionsCache();
-  });
-
   it('包含工具名称变量', () => {
     const context = createToolDescriptionContext();
     expect(context.custom?.BASH_TOOL_NAME).toBe('bash');
@@ -181,8 +172,6 @@ describe('createToolDescriptionContext - 工具描述上下文', () => {
     expect(typeof context.__functions__.CUSTOM_TIMEOUT_MS).toBe('function');
     expect(typeof context.__functions__.MAX_TIMEOUT_MS).toBe('function');
     expect(typeof context.__functions__.MAX_OUTPUT_CHARS).toBe('function');
-    expect(typeof context.__functions__.BASH_TOOL_EXTRA_NOTES).toBe('function');
-    expect(typeof context.__functions__.GIT_COMMIT_AND_PR_CREATION_INSTRUCTION).toBe('function');
   });
 
   it('函数返回正确的配置值', () => {
@@ -191,20 +180,6 @@ describe('createToolDescriptionContext - 工具描述上下文', () => {
     expect(context.__functions__.MAX_TIMEOUT_MS()).toBe(MAX_TIMEOUT_MS);
     expect(context.__functions__.MAX_OUTPUT_CHARS()).toBe(MAX_OUTPUT_CHARS);
   });
-
-  it('BASH_TOOL_EXTRA_NOTES 默认返回空字符串', () => {
-    const context = createToolDescriptionContext();
-    expect(context.__functions__.BASH_TOOL_EXTRA_NOTES()).toBe('');
-  });
-
-  it('GIT_COMMIT_AND_PR_CREATION_INSTRUCTION 返回 Git 指令', () => {
-    const context = createToolDescriptionContext();
-    const gitInstructions = context.__functions__.GIT_COMMIT_AND_PR_CREATION_INSTRUCTION();
-    expect(typeof gitInstructions).toBe('string');
-    // 验证包含关键内容
-    expect(gitInstructions).toContain('Committing changes with git');
-    expect(gitInstructions).toContain('Creating pull requests');
-  });
 });
 
 describe('renderPromptTemplate - 提示词模板渲染', () => {