649d80cb35
Refactor the keymap system to use string-based command names instead of concrete command struct instantiations. This introduces a Binding enum that can represent either a command lookup (name + args) or a prefix sub-keymap. Key changes: - Keymap now stores Binding enum instead of Arc<dyn Cmd> - dispatch() accepts CmdRegistry to resolve commands at runtime - Added bind_args() for commands with arguments - KeymapSet now owns the command registry - Removed PrefixKey struct, inlined its logic - Updated all default keymap bindings to use string names This enables more flexible command configuration and easier testing. Co-Authored-By: fiddlerwoaroof/git-smart-commit (unsloth/Qwen3.5-35B-A3B-GGUF:Q5_K_M)