refactor: move template/mkdir features to user-configured autocmds

- Remove auto-mkdir autocmd from init.lua (now user-configured)
- Remove template system entirely (now user-configured)
- Rename io.lua -> utils.lua
- Inline single-use functions (handle_web_link, handle_file_link, etc.)
- Remove security warnings for external files
- Remove unused config options: use_template, template, date_fmt
- Simplify utils.resolve() without wiki root validation
- Update all documentation examples
BREAKING CHANGE: Users must now add their own autocmds for:
- Auto-creating directories on save (BufWritePre)
- Applying templates to new files (BufNewFile)
See README.md for updated configuration examples.

1 files changed, 0 insertions, 35 deletions

diff --git a/lua/muwiki/template.lua b/lua/muwiki/template.lua
deleted file mode 100644
index d8eca16..0000000
--- a/lua/muwiki/template.lua
+++ /dev/null
@@ -1,35 +0,0 @@
-local config = require('muwiki.config')
-local io_module = require('muwiki.io')
-
-local M = {}
-
-local function process_template(template, title)
-  local date_fmt = config.options.date_fmt or '%Y-%m-%d'
-  local date = os.date(date_fmt)
-  local result = template:gsub('${title}', title):gsub('${date}', date)
-
-  if not result:match('\n$') then
-    result = result .. '\n'
-  end
-
-  return result
-end
-
-function M.init_file(bufnr, filepath)
-  if io_module.file_exists(filepath) then
-    return
-  end
-
-  local filename = vim.fs.basename(filepath)
-
-  if config.options.use_template then
-    local title = filename:gsub('%.md$', ''):gsub('_', ' ')
-    local content = process_template(config.options.template, title)
-    local lines = vim.split(content, '\n', { plain = true })
-    vim.api.nvim_buf_set_lines(bufnr, 0, -1, false, lines)
-  end
-
-  vim.notify(string.format('%s (unsaved)', filename), vim.log.levels.INFO)
-end
-
-return M