Initial commit: Telegram Management System

Full-stack web application for Telegram management
- Frontend: Vue 3 + Vben Admin
- Backend: NestJS
- Features: User management, group broadcast, statistics

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

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

frontend-vben/.gitattributes

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+# https://docs.github.com/cn/get-started/getting-started-with-git/configuring-git-to-handle-line-endings
+
+# Automatically normalize line endings (to LF) for all text-based files.
+* text=auto eol=lf
+
+# Declare files that will always have CRLF line endings on checkout.
+*.{cmd,[cC][mM][dD]} text eol=crlf
+*.{bat,[bB][aA][tT]} text eol=crlf
+
+# Denote all files that are truly binary and should not be modified.
+*.{ico,png,jpg,jpeg,gif,webp,svg,woff,woff2} binary