Migrate LSP setup for mason-lspconfig v2 and add claudecode.nvim.

Replace deprecated setup_handlers with vim.lsp.config(), add the
claudecode plugin spec under lua/custom/plugins/, and include nginx and
yaml treesitter parsers.

Co-authored-by: Cursor <cursoragent@cursor.com>

init.lua

@@ -309,7 +309,7 @@ vim.keymap.set('n', '<leader>sd', require('telescope.builtin').diagnostics, { de
 -- See `:help nvim-treesitter`
 require('nvim-treesitter.configs').setup {
   -- Add languages to be installed here that you want installed for treesitter
-  ensure_installed = { 'c', 'cpp', 'go', 'hcl', 'lua', 'python', 'rust', 'terraform', 'tsx', 'typescript', 'vim', 'vimdoc' },
+  ensure_installed = { 'c', 'cpp', 'go', 'hcl', 'lua', 'nginx', 'python', 'rust', 'terraform', 'tsx', 'typescript', 'vim', 'vimdoc', 'yaml' },
 
   -- Autoinstall languages that are not installed. Defaults to false (but you can change for yourself!)
   auto_install = true,
@@ -446,26 +446,25 @@ local servers = {
 require('neodev').setup()
 
 -- nvim-cmp supports additional completion capabilities, so broadcast that to servers
-local capabilities = vim.lsp.protocol.make_client_capabilities()
+local capabilities = require('cmp_nvim_lsp').default_capabilities()
-capabilities = require('cmp_nvim_lsp').default_capabilities(capabilities)
 
--- Ensure the servers above are installed
+-- mason-lspconfig v2+ uses Neovim's native vim.lsp.config / vim.lsp.enable APIs
-local mason_lspconfig = require 'mason-lspconfig'
+vim.lsp.config('*', {
+  capabilities = capabilities,
+  on_attach = on_attach,
+})
 
-mason_lspconfig.setup {
+for server_name, settings in pairs(servers) do
+  vim.lsp.config(server_name, {
+    settings = settings,
+  })
+end
+
+-- Ensure the servers above are installed (and auto-enabled when installed)
+require('mason-lspconfig').setup {
   ensure_installed = vim.tbl_keys(servers),
 }
 
-mason_lspconfig.setup_handlers {
-  function(server_name)
-    require('lspconfig')[server_name].setup {
-      capabilities = capabilities,
-      on_attach = on_attach,
-      settings = servers[server_name],
-    }
-  end,
-}
-
 -- [[ Configure nvim-cmp ]]
 -- See `:help cmp`
 local cmp = require 'cmp'

lua/custom/plugins/claudecode.lua

@@ -0,0 +1,44 @@
+return {
+  "coder/claudecode.nvim",
+  dependencies = { "folke/snacks.nvim" },
+  config = true,
+  -- `cmd` lets lazy.nvim create command stubs that load the plugin on first use,
+  -- so `:ClaudeCode` and friends work on a fresh start. Without it, a keys-only
+  -- spec defers loading until a <leader>a* mapping is pressed and the commands
+  -- would not exist yet.
+  cmd = {
+    "ClaudeCode",
+    "ClaudeCodeFocus",
+    "ClaudeCodeSelectModel",
+    "ClaudeCodeAdd",
+    "ClaudeCodeSend",
+    "ClaudeCodeTreeAdd",
+    "ClaudeCodeStatus",
+    "ClaudeCodeStart",
+    "ClaudeCodeStop",
+    "ClaudeCodeOpen",
+    "ClaudeCodeClose",
+    "ClaudeCodeDiffAccept",
+    "ClaudeCodeDiffDeny",
+    "ClaudeCodeCloseAllDiffs",
+  },
+  keys = {
+    { "<leader>a", nil, desc = "AI/Claude Code" },
+    { "<leader>ac", "<cmd>ClaudeCode<cr>", desc = "Toggle Claude" },
+    { "<leader>af", "<cmd>ClaudeCodeFocus<cr>", desc = "Focus Claude" },
+    { "<leader>ar", "<cmd>ClaudeCode --resume<cr>", desc = "Resume Claude" },
+    { "<leader>aC", "<cmd>ClaudeCode --continue<cr>", desc = "Continue Claude" },
+    { "<leader>am", "<cmd>ClaudeCodeSelectModel<cr>", desc = "Select Claude model" },
+    { "<leader>ab", "<cmd>ClaudeCodeAdd %<cr>", desc = "Add current buffer" },
+    { "<leader>as", "<cmd>ClaudeCodeSend<cr>", mode = "v", desc = "Send to Claude" },
+    {
+      "<leader>as",
+      "<cmd>ClaudeCodeTreeAdd<cr>",
+      desc = "Add file",
+      ft = { "NvimTree", "neo-tree", "oil", "minifiles", "netrw", "snacks_picker_list" },
+    },
+    -- Diff management
+    { "<leader>aa", "<cmd>ClaudeCodeDiffAccept<cr>", desc = "Accept diff" },
+    { "<leader>ad", "<cmd>ClaudeCodeDiffDeny<cr>", desc = "Deny diff" },
+  },
+}