fix: correct bug fixing workflow in GETTING_STARTED

/cli:mode:bug-index generates analysis documents, not task JSON.
Claude should directly execute fixes based on analysis results,
not call /workflow:execute which requires task JSON files.

Updated both English and Chinese versions to reflect correct workflow:
- Removed incorrect /workflow:execute step
- Added clarification that Claude implements fix directly after analysis

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

GETTING_STARTED.md

@@ -146,8 +146,7 @@ Quick bug analysis and fix workflow:
 # Analyze the bug
 /cli:mode:bug-index "Incorrect success message with wrong password"
 
-# Generate and execute fix plan
-/workflow:execute
+# Claude will analyze and then directly implement the fix based on the analysis
 ```
 
 ---

GETTING_STARTED_CN.md

@@ -146,8 +146,7 @@
 # 分析 Bug
 /cli:mode:bug-index "密码错误时仍显示成功消息"
 
-# 生成并执行修复计划
-/workflow:execute
+# Claude 会分析后直接根据分析结果实现修复
 ```
 
 ---