Merge remote-tracking branch 'origin/calendar-support' into feature-gap

# Conflicts:
#	development/vimwiki-gap.md

lua/nuwiki/config.lua

@@ -76,6 +76,12 @@ M.defaults = {
   diagnostic = {
     link_severity = 'warn',
   },
+
+  -- Calendar-vim integration. On by default — set to `false` to opt out.
+  -- When on, nuwiki detects calendar-vim on the runtimepath and wires
+  -- `g:calendar_action` / `g:calendar_sign` automatically.
+  -- Also respects `g:nuwiki_no_calendar` set before setup() to disable.
+  use_calendar = true,
 }
 
 M.options = vim.deepcopy(M.defaults)

lua/nuwiki/init.lua

@@ -106,6 +106,13 @@ function M.setup(opts)
     vim.filetype.add({ extension = extensions })
   end
 
+  -- Calendar-vim wiring lives in plugin/nuwiki.vim's FileType autocmd, which
+  -- runs for both Vim and Neovim. Translate the Lua-side opt-out into the
+  -- g: flag that autocmd reads so `use_calendar = false` fully disables it.
+  if config.options.use_calendar == false then
+    vim.g.nuwiki_no_calendar = 1
+  end
+
   lsp.register()
   _setup_global_mappings()
   _setup_global_commands()