adopt neovim 0.12 native editing features

lua/plugins/lsp.lua

@@ -1,12 +1,7 @@
 return {
   "neovim/nvim-lspconfig",
   event = { "BufReadPre", "BufNewFile" },
-  dependencies = {
-    "hrsh7th/cmp-nvim-lsp",
-  },
   config = function()
-    local capabilities = require("cmp_nvim_lsp").default_capabilities()
-
     -- Load trusted project-local LSP settings from .nvim.lua.
     local function load_project_lsp_settings(server_name, root_dir)
       if not root_dir then
@@ -66,6 +61,13 @@ return {
         -- Setup keymaps for this buffer
         setup_keymaps(args.buf)
 
+        if client:supports_method("textDocument/completion") then
+          vim.lsp.completion.enable(true, client.id, args.buf)
+          if vim.fn.has("nvim-0.12") == 1 then
+            vim.bo[args.buf].complete = "o^20"
+          end
+        end
+
         -- Load and send project-specific settings
         local project_settings = load_project_lsp_settings(client.name, client.root_dir)
         if project_settings.settings then
@@ -88,13 +90,8 @@ return {
     local function configure(server_name, opts)
       opts = opts or {}
       
-      -- Merge with defaults
-      local config = vim.tbl_deep_extend("force", {
-        capabilities = capabilities,
-      }, opts)
-
       -- Configure the server using the new API
-      vim.lsp.config(server_name, config)
+      vim.lsp.config(server_name, opts)
     end
 
     -- Configure all servers