v3.0.0

• Add interactive REPL mode
• Add list command for JSON output and scripting
• Add optional note field to credentials
• Add shell completion support for bash/zsh/fish, with dynamic completions for commands and saved service/username completions
• Show last 4 digits of card number in non-verbose payment cards table
• Clipboard auto-clear after 10 seconds and --out flag for show/gen commands
• Fix to ask master password only once when unlocking vault
• Fix zsh completion clearing input when no exact match
• Fix table layout