refactor: 重构Neovim配置结构并更新文档

- 调整配置文件组织方式，新增init.lua作为入口
- 更新lazy-lock.json同步插件版本
- 完善lua/目录下的插件和配置模块结构
- 修改README.md补充配置说明和使用指南

lua/plugins/telescope.lua

@@ -0,0 +1,23 @@
+return {
+	"nvim-telescope/telescope.nvim",
+	dependencies = { "nvim-lua/plenary.nvim" },
+	config = function()
+		local builtin = require("telescope.builtin")
+		vim.keymap.set("n", "<leader>ff", builtin.find_files, { desc = "查找文件" })
+		vim.keymap.set("n", "<leader>fg", builtin.live_grep, { desc = "全局搜索" })
+		vim.keymap.set("n", "<leader>fb", builtin.buffers, { desc = "切换缓冲区" })
+		vim.keymap.set("n", "<leader>fh", builtin.help_tags, { desc = "搜索帮助" })
+
+		require("telescope").setup({
+			defaults = {
+				file_ignore_patterns = { "node_modules", ".git" },
+				mappings = {
+					i = {
+						["<C-u>"] = false,
+						["<C-d>"] = false,
+					},
+				},
+			},
+		})
+	end,
+}