(neovim) switch to own configuration

config/common/nvim/lua/plugins/mason.lua

@@ -0,0 +1,45 @@
+return {
+  {
+    "williamboman/mason.nvim",
+    lazy = false,
+    cmd = "Mason",
+    keys = { { "<leader>cm", "<cmd>Mason<cr>", desc = "Mason" } },
+    build = ":MasonUpdate",
+    opts = {
+      ensure_installed = {
+        "lua-language-server",
+        "terraform-ls",
+        "stylua",
+      },
+    },
+    config = function(_, opts)
+      require("mason").setup(opts)
+      local mr = require("mason-registry")
+      local function ensure_installed()
+        for _, tool in ipairs(opts.ensure_installed) do
+          if mr.has_package(tool) then
+            local p = mr.get_package(tool)
+            if not p:is_installed() then
+              vim.notify("Mason: Installing " .. tool .. "...", vim.log.levels.INFO)
+              p:install():once("closed", function()
+                if p:is_installed() then
+                  vim.notify("Mason: Successfully installed " .. tool, vim.log.levels.INFO)
+                else
+                  vim.notify("Mason: Failed to install " .. tool, vim.log.levels.ERROR)
+                end
+              end)
+            end
+          else
+            vim.notify("Mason: Package '" .. tool .. "' not found", vim.log.levels.WARN)
+          end
+        end
+      end
+
+      if mr.refresh then
+        mr.refresh(ensure_installed)
+      else
+        ensure_installed()
+      end
+    end,
+  },
+}