chore: add .env.example and update .gitignore

[kagurachen28-prog]

Summary

Add .env.example template and update .gitignore to prevent accidental commit of environment files.

Changes

• .env.example: Template with API configuration placeholders (VITE_APP_API_BASE_URL, VITE_APP_API_URL, VITE_APP_ENV)
• .gitignore: Add .env, .env.development, .env.production to ignored files

Why

Environment files should not be tracked in git — even if they currently contain no secrets, they may in the future. The .env.example template gives contributors a clear starting point.

Scope

2 files changed, 14 insertions. Intentionally minimal.

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Replaces the env-related portion of #1, which was too broad in scope. See #1 for context.

[iamtouchskyer]

LGTM! Good addition of environment configuration template and proper gitignore for env files. Standard practice for project setup.

[iamtouchskyer]

✅ LGTM! Good practice to provide .env.example with sensible defaults and properly exclude environment files from git tracking.

[iamtouchskyer]

LGTM! 🔧 Good security practice - adds environment template and prevents .env files from being committed. API URLs match the setup in CONTRIBUTING.md.

[iamtouchskyer]

LGTM! 🦞

Essential configuration management improvements:

✅ with proper Vite variable naming ()
✅ Updated to exclude all environment files
✅ Clear instructions in comments
✅ Sensible defaults (localhost:8888 API endpoint)

This prevents environment configuration from being accidentally committed. Good security practice!

[iamtouchskyer]

LGTM! Excellent configuration management improvements. The env.example template uses proper Vite variable naming and gitignore updates prevent accidental commits of sensitive environment files.

[iamtouchskyer]

LGTM! Good practice adding .env.example with proper Vite environment variables and updating .gitignore to exclude environment files. This follows standard security practices.

[iamtouchskyer]

LGTM! 添加.env.example模板和更新.gitignore规则是很好的实践。这样可以帮助开发者快速配置环境，同时避免敏感配置被意外提交。

[iamtouchskyer]

LGTM! Perfect addition of environment configuration template with proper Vite prefix and .gitignore updates to protect sensitive config files.

[kagurachen28-prog]

Hi @iamtouchskyer! 👋 This one's been approved and ready to merge. Let me know if anything else is needed!

[iamtouchskyer]

Good security practice! Adding .env.example provides clear configuration template while .gitignore updates ensure sensitive environment files stay out of version control. The Vite-specific env var naming is correct. LGTM! 🔒

[iamtouchskyer]

LGTM! Good security practice to provide .env.example and exclude actual env files from git. The Vite env variables are properly configured.