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, 20 deletions

diff --git a/lua/muwiki/paths.lua b/lua/muwiki/paths.lua
index f679888..c2f8fdb 100644
--- a/lua/muwiki/paths.lua
+++ b/lua/muwiki/paths.lua
@@ -26,26 +26,6 @@ function M.strip_file_protocol(url)
   return url:gsub('^file://', '')
 end
 
-function M.is_within_wiki(filepath, wiki_root)
-  local real_path = vim.fn.resolve(filepath)
-  local real_root = vim.fn.resolve(wiki_root)
-
-  local normalized_path = vim.fs.normalize(real_path)
-  local normalized_root = vim.fs.normalize(real_root)
-
-  return vim.startswith(normalized_path, normalized_root)
-end
-
-function M.validate_within_wiki(resolved_path, wiki_root, original_path)
-  if not M.is_within_wiki(resolved_path, wiki_root) then
-    vim.notify(
-      string.format('Warning: Resolved path outside wiki root: %s', original_path),
-      vim.log.levels.WARN
-    )
-  end
-  return resolved_path
-end
-
 local ALLOWED_SCHEMES = {
   http = true,
   https = true,