(neovim) another try of my own setup

config/common/nvim/lua/core/mason-path.lua

@@ -0,0 +1,25 @@
+local mason_bin = vim.fn.stdpath("data") .. "/mason/bin"
+local current_path = vim.env.PATH or ""
+
+-- Remove any existing Mason bin entries to prevent duplicates
+local path_entries = vim.split(current_path, ":")
+local clean_path_entries = {}
+local seen = {}
+
+for _, entry in ipairs(path_entries) do
+  -- Skip Mason bin entries and duplicates
+  if entry ~= mason_bin and entry ~= "" and not seen[entry] then
+    seen[entry] = true
+    table.insert(clean_path_entries, entry)
+  end
+end
+
+-- Add Mason bin directory at the beginning
+local new_path = mason_bin .. ":" .. table.concat(clean_path_entries, ":")
+vim.env.PATH = new_path
+
+-- Verify Mason bin directory exists
+if vim.fn.isdirectory(mason_bin) == 0 then
+  -- Mason not installed yet, create placeholder
+  vim.fn.mkdir(mason_bin, "p")
+end