Refactor plugin layout, add AI autocomplete and direnv, update docs

lua/plugins/completion.lua

@@ -0,0 +1,74 @@
+-- Completion engine using nvim-cmp
+-- Keeping nvim-cmp for now due to blink.cmp stability issues
+return {
+	{
+		"hrsh7th/nvim-cmp",
+		event = "InsertEnter",
+		dependencies = {
+			"L3MON4D3/LuaSnip",
+			"saadparwaiz1/cmp_luasnip",
+			"hrsh7th/cmp-nvim-lsp",
+			"hrsh7th/cmp-buffer",
+			"hrsh7th/cmp-path",
+			"rafamadriz/friendly-snippets",
+		},
+		config = function()
+			local cmp = require("cmp")
+			local luasnip = require("luasnip")
+
+			-- Load snippets
+			require("luasnip.loaders.from_vscode").lazy_load()
+
+			cmp.setup({
+				snippet = {
+					expand = function(args)
+						luasnip.lsp_expand(args.body)
+					end,
+				},
+				completion = {
+					completeopt = "menu,menuone,noinsert",
+				},
+				mapping = cmp.mapping.preset.insert({
+					["<C-j>"] = cmp.mapping.select_next_item(),
+					["<C-k>"] = cmp.mapping.select_prev_item(),
+					["<C-y>"] = cmp.mapping.confirm({ select = true }),
+					["<C-c>"] = cmp.mapping.complete(),
+					["<C-u>"] = cmp.mapping.scroll_docs(-4),
+					["<C-d>"] = cmp.mapping.scroll_docs(4),
+					["<C-e>"] = cmp.mapping.abort(),
+					["<Esc>"] = cmp.mapping(function(fallback)
+						if cmp.visible() then
+							cmp.abort()
+						end
+						fallback() -- Still exit insert mode after aborting
+					end, { "i", "s" }),
+				}),
+				sources = cmp.config.sources({
+					{ name = "nvim_lsp", priority = 8 },
+					{ name = "luasnip", priority = 7 },
+					{ name = "path", priority = 7 },
+					{ name = "buffer", priority = 6 },
+				}),
+				window = {
+					completion = cmp.config.window.bordered(),
+					documentation = cmp.config.window.bordered(),
+				},
+			})
+		end,
+	},
+	-- LuaSnip for snippet expansion
+	{
+		"L3MON4D3/LuaSnip",
+		lazy = true,
+		build = (function()
+			if vim.fn.has("win32") == 1 or vim.fn.executable("make") == 0 then
+				return
+			end
+			return "make install_jsregexp"
+		end)(),
+		opts = {
+			history = true,
+			delete_check_events = "TextChanged",
+		},
+	},
+}