The full-column ColorColumn was visually overwhelming on every line, especially
with default vim's LightRed (kicked in silently when solarized8 wasn't installed).
Replace it with an OverLength match that only highlights characters past the
buffer's textwidth.
- editing.vim: OverLength matchadd, refreshed on FileType/BufWinEnter/OptionSet
- languages.vim: drop colorcolumn from per-filetype autocmds (textwidth still set)
- ui.vim: VertSplit/CursorLine/CursorLineNr/SignColumn override via ColorScheme
autocmd; fillchars for vert and eob; timer-based warning if solarized8 missing
Statusline: add buffer count, PASTE/SPELL/MAX flags, LSP server name,
encoding (shown only when non-utf-8/unix).
File tree sidebar: ,e toggles netrw sidebar (cwd), ,E toggles sidebar
(current file dir). Tracks t:netrw_sidebar_buf per-tab for reliable
toggle. browse_split=4 opens files in editor window.
vim . integration: opens tree sidebar (30 cols) + Startify dashboard.
Files opened from tree replace the dashboard.
Toggle feedback: F2/F3/F4/F6/,ss/,z now echo their new state.
Replace the monolithic 1268-line .vimrc with a thin loader that sources
12 modules under modules/ (env, plugins, core, ui, editing, navigation,
lsp, lint, git, writing, languages, tools). Each module is independently
readable and can be toggled by commenting one line.
Add interactive tutorial (tutor/chopsticks.tutor) with 10 lessons covering
all features. Users can run :ChopsticksLearn to start.
