refactor: restructure init.lua to use lazy plugin manager and add lsp configurations

lua/plugins/ai.lua

@@ -0,0 +1,14 @@
+return {
+	{
+		"Exafunction/windsurf.vim",
+		event = "VeryLazy",
+		config = function()
+			vim.keymap.set("i", "<A-f>", function()
+				return vim.fn["codeium#Accept"]()
+			end, { expr = true, silent = true })
+			vim.keymap.set("i", "<A-x>", function()
+				return vim.fn["codeium#Clear"]()
+			end, { expr = true, silent = true })
+		end,
+	},
+}