feat(i18n): add Chinese (zh-CN) localization for agent names

[charlie-cao]

🇨🇳 Chinese (zh-CN) Localization for Agent Names

What

Adds a PowerShell script and JSON mapping file to localize agent name and description fields in YAML frontmatter to Simplified Chinese. This makes agent names readable in Copilot Chat's agent picker for Chinese-speaking users.

Files Added

File	Description
scripts/i18n/agent-names-zh.json	Mapping of 130+ English agent names → Chinese translations
scripts/i18n/localize-agents-zh.ps1	PowerShell script to batch-update installed agent files
scripts/i18n/README.md	Usage documentation

Usage

After installing agents with install.sh --tool copilot:

powershell -ExecutionPolicy Bypass -File scripts/i18n/localize-agents-zh.ps1

How It Works

1. Reads agent-names-zh.json (UTF-8 encoded) for the translation map
2. For each .md file in target directories (~/.github/agents/, ~/.copilot/agents/)
3. Extracts name: from YAML frontmatter → looks up Chinese translation → replaces in-place
4. Script is pure ASCII (avoids PowerShell encoding issues); all Chinese text lives in the JSON

Before / After

# Before
name: Security Engineer
description: Threat modeling, secure code review, security architecture

# After
name: 安全工程师
description: 威胁建模、安全代码审查与应用安全架构专家

Testing

• Tested on Windows 11 + PowerShell 5.1
• All 144 agents display Chinese names in VS Code Copilot Chat agent picker
• Only modifies installed copies (in ~/.github/agents/), not source files
• Re-runnable: safe to execute after each install.sh update

Notes

• This is a non-breaking addition — only adds files under scripts/i18n/
• Opens the door for other locales (ja, ko, etc.) using the same pattern
• JSON is the single source of truth for translations

[mhc222]

Code Review

No issues found.

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