Replace greggh/claude-code.nvim (bare terminal wrapper) with
coder/claudecode.nvim's native WebSocket bridge — inline diff review,
buffer/selection context, model switching. Runs with
terminal.provider = "native" to avoid pulling in snacks.nvim. New
commands are bound under the previously-unused <leader>a prefix, so
none of the existing single-key app toggles are disturbed.
Move the alot floating-terminal toggle from bare "n" to "m", freeing
"n" back to Vim's default repeat-search behavior.
Document the full Neovim keybind set (window nav, app toggles, Claude
Code, insert-mode completion, misc) in docs/md/editors.md — previously
undocumented.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>