docs(gap): expand audit findings

Reframe diary_start_week_day as a wrongly-removed client-side concern
that matters for parity (non-Monday users lose the upstream option).
Add four P3 command-divergence rows (Neovim VimwikiColorize arg-drop,
TableMoveColumn backing-name split, NuwikiTabIndex missing -count,
ToggleListItem/Increment/Decrement missing -range) and a P3 mappings
row for the gLH/gLL/gLR case-variant aliases.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

development/vimwiki-gap.md

@@ -88,9 +88,13 @@ fix site.
   `:VimwikiBaddLink`). _Fix:_ `lua/nuwiki/keymaps.lua`, `ftplugin/vimwiki.vim`.
 - [ ] **`diary_caption_level` default divergence** — nuwiki `1` vs vimwiki `0`.
   _Fix:_ `config.rs:291` (and defaults in `lua/nuwiki/config.lua`).
-- [ ] **`diary_start_week_day`** — deliberately removed in `c63ec67`; the weekly
-  diary is fixed to ISO-Monday. Default matches upstream, but non-Monday users
-  lose it. _Fix:_ `config.rs` + `crates/nuwiki-core/src/date.rs`.
+- [ ] **`diary_start_week_day`** — **wrongly removed** in `c63ec67`. The removal
+  treated it as a server concern and hardwired the weekly diary to ISO-Monday
+  (`crates/nuwiki-core/src/date.rs` `monday_of_iso_week`), but choosing which
+  weekday the diary week begins on is a **client-side concern** and it **matters
+  for parity** — non-Monday users lose the upstream option entirely. _Fix:_
+  restore the config key client-side (`lua/nuwiki/config.lua`) and thread the
+  week-start through to the diary date logic instead of hardcoding Monday.
 
 ## P3 — Niche / low impact
 
@@ -106,6 +110,21 @@ fix site.
 - [ ] `:VimwikiSearch` / `VWS` uses `lvimgrep`, not vimwiki's search engine.
 - [ ] `VimwikiIndex` family is buffer-local in nuwiki (upstream defines globally
   in `plugin/`); only `:…UISelect` is a global entry point.
+- [ ] **`VimwikiColorize` / `NuwikiColorize` drop their argument in the Neovim
+  branch** — both are `-nargs=1`, but the Neovim defs call `colorize()` with no
+  `<q-args>` (`ftplugin/vimwiki.vim:445,517`) while the Vim branch passes it
+  (`:106,177`). The color name is silently ignored under Neovim (real bug, not
+  just parity). _Fix:_ `ftplugin/vimwiki.vim` Neovim branch.
+- [ ] **`VimwikiTableMoveColumn{Left,Right}` dispatch to different backing names
+  per client** — Vim branch → `table_move_left/right`; Neovim branch →
+  `table_move_column_left/right`. Harmless today (each name exists in its own
+  impl) but a divergence to converge.
+- [ ] **`NuwikiTabIndex` lacks `-count` in the Neovim branch** (`:452`) while its
+  siblings (`VimwikiTabIndex`, `NuwikiIndex`, and the Vim-branch `NuwikiTabIndex`)
+  all carry it — `vim.v.count` is still read, so a count is honored inconsistently.
+- [ ] **`VimwikiToggleListItem` / `Increment` / `DecrementListItem` lack
+  `-range`** (both branches) vs upstream's `-range` (`:350`) — no visual-range
+  checkbox toggle / symbol cycle.
 
 ### Config
 - [ ] `auto_header` — auto H1-from-filename on new page (server-side).
@@ -125,6 +144,11 @@ fix site.
 ### Mappings
 - [ ] Visual `<CR>` normalize-link (visual `+` covers the same intent).
 - [ ] Insert `<S-CR>` multiline list item.
+- [ ] `gLH` / `gLL` / `gLR` — upstream binds these as case-variant **aliases**
+  of `gLh` / `gLl` / `gLr` (same actions: dedent / indent whole item, renumber
+  all lists; upstream `ftplugin/vimwiki.vim:553,555,561`). nuwiki has the
+  lowercase forms but not the uppercase-suffix aliases. Cosmetic — same effect,
+  redundant keys.
 
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