Initial commit: UnifiMultimirror port mirroring tool

- TUI application (Textual) for interactive port selection
- CLI application (Rich) as alternative interface
- SSH manager for device connection
- Config parser for running-config, interface status, port-channel
- Script generator for Bash, Python, and command files
- Support for multiple source ports and LAG interfaces

Co-authored-by: Cursor <cursoragent@cursor.com>

.gitignore

@@ -0,0 +1,48 @@
+# Python
+__pycache__/
+*.py[cod]
+*$py.class
+*.so
+.Python
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+*.egg-info/
+.installed.cfg
+*.egg
+
+# Virtual environments
+venv/
+ENV/
+env/
+ssh_env/
+
+# IDE
+.idea/
+.vscode/
+*.swp
+*.swo
+*~
+
+# OS
+.DS_Store
+Thumbs.db
+
+# Project specific
+.ssh_key
+config.json
+old_config.json
+generated/
+!generated/.gitkeep
+
+# Logs
+*.log