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, 161 deletions

diff --git a/lua/muwiki/io.lua b/lua/muwiki/io.lua
deleted file mode 100644
index e86fb2e..0000000
--- a/lua/muwiki/io.lua
+++ /dev/null
@@ -1,161 +0,0 @@
-local config = require('muwiki.config')
-local paths = require('muwiki.paths')
-
-local M = {}
-
-function M.exists(path)
-  local stat = vim.uv.fs_stat(path)
-  return stat and stat.type or nil
-end
-
-function M.file_exists(path)
-  return M.exists(path) == 'file'
-end
-
-function M.dir_exists(path)
-  return M.exists(path) == 'directory'
-end
-
-function M.create_dir_safely(dirpath, wiki_root)
-  if not paths.is_within_wiki(dirpath, wiki_root) then
-    return false, 'Directory is outside wiki root'
-  end
-
-  if M.dir_exists(dirpath) then
-    return true, nil
-  end
-
-  if vim.fn.mkdir(dirpath, 'p') ~= 1 then
-    return false, 'Failed to create directory'
-  end
-
-  if not paths.is_within_wiki(dirpath, wiki_root) then
-    vim.fn.delete(dirpath, 'd')
-    return false, 'Symlink attack detected'
-  end
-
-  return true, nil
-end
-
-function M.ensure_parent_dirs(filepath, wiki_root, mode, callback)
-  local dirpath = vim.fs.dirname(filepath)
-
-  if M.dir_exists(dirpath) then
-    if callback then
-      callback(true)
-    end
-    return true
-  end
-
-  local function do_create()
-    local success, err = M.create_dir_safely(dirpath, wiki_root)
-    if not success then
-      vim.notify(string.format('Cannot create directory: %s', err), vim.log.levels.ERROR)
-      if callback then
-        callback(false)
-      end
-      return false
-    end
-
-    if mode == 'notify' then
-      vim.notify(string.format('Created directory: %s', dirpath), vim.log.levels.INFO)
-    end
-
-    if callback then
-      callback(true)
-    end
-    return true
-  end
-
-  if mode == 'prompt' then
-    vim.ui.select({ 'Yes', 'No' }, {
-      prompt = string.format('Directory does not exist. Create %s?', dirpath),
-    }, function(choice)
-      if choice == 'Yes' then
-        do_create()
-      else
-        vim.notify('Directory creation cancelled', vim.log.levels.INFO)
-        if callback then
-          callback(false)
-        end
-      end
-    end)
-    return nil
-  end
-
-  return do_create()
-end
-
-function M.open_in_buffer(filepath)
-  local bufnr = vim.fn.bufnr(filepath, true)
-  vim.api.nvim_win_set_buf(0, bufnr)
-end
-
-function M.open_index(name)
-  local wiki_path = config.wiki_path(name)
-  if not wiki_path then
-    return
-  end
-
-  local index_path = vim.fs.joinpath(wiki_path, config.options.index_file)
-  M.open_in_buffer(index_path)
-end
-
-function M.resolve(filepath, wiki_root)
-  if not wiki_root then
-    error('wiki_root parameter is required for secure path resolution')
-  end
-
-  local path = paths.strip_file_protocol(filepath)
-  local resolved = paths.resolve(path, wiki_root)
-  return paths.validate_within_wiki(resolved, wiki_root, filepath)
-end
-
-function M.is_text_file(ext)
-  local ext_lower = ext:lower()
-  for _, text_ext in ipairs(config.options.text_extensions) do
-    if ext_lower == text_ext then
-      return true
-    end
-  end
-  return false
-end
-
-function M.normalize_filename(text)
-  local normalized = text:lower()
-  normalized = normalized:gsub('%s+', '_')
-  normalized = normalized:gsub('[^%w_%-%.]', '')
-  return normalized
-end
-
-function M.open_wiki_file(filepath)
-  local template = require('muwiki.template')
-  local exists = M.file_exists(filepath)
-
-  if not exists and config.options.create_missing_dirs then
-    local wiki_root = config.wiki_root(0)
-    if wiki_root then
-      local mode = config.options.create_missing_dirs
-
-      if mode == 'prompt' then
-        M.ensure_parent_dirs(filepath, wiki_root, mode, function(success)
-          if success then
-            M.open_in_buffer(filepath)
-            template.init_file(vim.api.nvim_get_current_buf(), filepath)
-          end
-        end)
-        return
-      else
-        local success = M.ensure_parent_dirs(filepath, wiki_root, mode)
-        if not success then
-          return
-        end
-      end
-    end
-  end
-
-  M.open_in_buffer(filepath)
-  template.init_file(vim.api.nvim_get_current_buf(), filepath)
-end
-
-return M