Update .env.example

[yanyaoer]

Remove Unnecessary env , it's will break my autoload script :(

- EOF < /dev/null

PR Type (REQUIRED: select at least one)

• 🐛 fix: Bug fix (non-breaking change)
• ✨ feat: New feature (non-breaking change)
• 🔌 feat: Platform integration (new platform support)
• 💥 feat: Breaking change (changes existing functionality)
• 📚 docs: Documentation only changes
• ♻️ refactor: Code refactoring (no functionality change)
• ⚡ perf: Performance improvements
• 🎨 style: Code formatting, whitespace, semicolons
• 🔧 chore: Maintenance, dependencies, build tools
• 🚨 test: Adding or updating tests
• 🔄 ci: CI/CD configuration changes

What does this PR do?

Related Issue

Code Quality Checklist (ALL REQUIRED)

• No hardcoded secrets (use process.env.* or config files)
• No console.log in production code (use logger.*)
• Error handling implemented (try/catch blocks)
• Input validation where needed
• Tested locally with tmux

Platform Testing

• Email
• Telegram
• LINE
• Desktop notifications

How did you test this?

1. run node start-all-webhooks.js
2. then execute prompt with cc, reviced email and telegram message