fixed folding -- again

term/.config/nvim/lua/basic-settings.lua

@@ -10,20 +10,45 @@
     - vim.go.* for global option shorthand
 ]]
 
+-- ============================================================================
+-- TREESITTER (Built-in Neovim 0.10+ features)
+-- ============================================================================
+-- Enable Treesitter syntax highlighting (native in Neovim 0.10+)
+-- This replaces the old nvim-treesitter highlight module
+vim.api.nvim_create_autocmd("FileType", {
+	pattern = "*",
+	callback = function()
+		if vim.bo.buftype == "" and vim.bo.filetype ~= "" then
+			pcall(vim.treesitter.start)
+		end
+	end,
+	desc = "Enable Treesitter highlighting",
+})
+
 -- ============================================================================
 -- FOLDING SETTINGS (Code folding)
 -- ============================================================================
--- Foldmethod determines how code blocks are detected and folded
--- "expr" means folds are based on expressions (we use treesitter for this)
-vim.opt.foldmethod = "expr"
-
--- Foldexpr is the expression used to determine fold level
--- v:lua.vim.treesitter.foldexpr() uses Treesitter to calculate folds
-vim.opt.foldexpr = "v:lua.vim.treesitter.foldexpr()"
+-- NOTE: In Neovim 0.10+, Treesitter folding must be set per-buffer via FileType autocmd
+-- Setting it globally causes the foldexpr to evaluate before Treesitter attaches
 
 -- Foldlevel: Higher number = more folds are open by default
--- 99 means almost all folds are open when opening a file
-vim.opt.foldlevel = 99
+-- 1-2 means you'll see folds by default; 99 means all folds are open
+vim.opt.foldlevel = 1
+vim.opt.foldlevelstart = 1
+
+-- Setup Treesitter folding for each buffer after filetype is detected
+-- This ensures the parser is loaded before foldexpr evaluates
+vim.api.nvim_create_autocmd("FileType", {
+	pattern = "*",
+	callback = function()
+		-- Only set folding for file buffers with Treesitter support
+		if vim.bo.buftype == "" then
+			vim.wo.foldmethod = "expr"
+			vim.wo.foldexpr = "v:lua.vim.treesitter.foldexpr()"
+		end
+	end,
+	desc = "Setup Treesitter folding per filetype",
+})
 
 -- ============================================================================
 -- LINE NUMBERS

term/.config/nvim/lua/plugins/treesitter.lua

@@ -3,36 +3,56 @@ return {
 	build = ":TSUpdate",
 	event = { "BufReadPost", "BufNewFile" },
 	config = function()
-		-- Ensure nvim-treesitter queries are preferred over runtime queries
-		-- This fixes the "except*" syntax error with updated parsers
-		vim.opt.runtimepath:prepend(vim.fn.stdpath("data") .. "/lazy/nvim-treesitter")
+		-- In the latest nvim-treesitter (post-refactor), the plugin only handles
+		-- parser installation. Highlighting, folding, and indenting are handled
+		-- by native Neovim Treesitter integration.
 
-		local ok, configs = pcall(require, "nvim-treesitter.configs")
+		-- CRITICAL: Add nvim-treesitter/runtime to runtimepath so queries are found
+		local ts_runtime = vim.fn.stdpath("data") .. "/lazy/nvim-treesitter/runtime"
+		vim.opt.runtimepath:prepend(ts_runtime)
+
+		-- Setup nvim-treesitter (minimal config for parser installation)
+		require("nvim-treesitter").setup({
+			-- Parser installation directory (default: stdpath('data')/site)
+			install_dir = vim.fn.stdpath("data") .. "/site",
+		})
+
+		-- Auto-install parsers for these languages when opening a file
+		local ensure_installed = {
+			"python",
+			"lua",
+			"json",
+			"yaml",
+			"javascript",
+			"typescript",
+			"tsx",
+			"vue",
+			"html",
+			"css",
+			"bash",
+			"markdown",
+			"markdown_inline",
+		}
+
+		-- Install parsers
+		local ok, install = pcall(require, "nvim-treesitter.install")
 		if ok then
-			configs.setup({
-				auto_install = true,
-				ensure_installed = {
-					"python",
-					"lua",
-					"json",
-					"yaml",
-					"javascript",
-					"typescript",
-					"tsx",
-					"vue",
-					"html",
-					"css",
-					"bash",
-					"markdown",
-					"markdown_inline",
-				},
-				highlight = {
-					enable = true,
-					-- Disable additional_vim_regex_highlighting to avoid conflicts
-					additional_vim_regex_highlighting = false,
-				},
-				indent = { enable = true },
-			})
+			for _, lang in ipairs(ensure_installed) do
+				vim.schedule(function()
+					install.install({ lang })
+				end)
+			end
 		end
+
+		-- Enable Treesitter-based indenting (natively supported by Neovim)
+		vim.api.nvim_create_autocmd("FileType", {
+			pattern = "*",
+			callback = function()
+				if vim.bo.buftype == "" and vim.bo.filetype ~= "" then
+					vim.bo.indentexpr = "v:lua.vim.treesitter.indentexpr()"
+				end
+			end,
+			desc = "Enable Treesitter indenting",
+		})
 	end,
 }