fix(textobj): use correct config variable, raise log level

Problem: motion keymaps (]], [[, ]t, [t) were never set because
`config.get().debug` referenced an undefined `config` variable,
crashing _setup_buf_mappings before the motion loop. Debug logging
also used vim.log.levels.DEBUG which is filtered by default.

Solution: replace `config` with `cfg` (already in scope) and raise
both debug notify calls from DEBUG to INFO.

lua/pending/textobj.lua

@@ -8,7 +8,7 @@ local M = {}
 ---@return nil
 local function dbg(...)
   if config.get().debug then
-    vim.notify('[pending.textobj] ' .. string.format(...), vim.log.levels.DEBUG)
+    vim.notify('[pending.textobj] ' .. string.format(...), vim.log.levels.INFO)
   end
 end