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/init.lua

@@ -0,0 +1,34 @@
+local opts = {
+	git = {
+		log = { "-1" },
+		timeout = 120,
+		url_format = "git@github.com:%s.git",
+		filter = true,
+		throttle = {
+			enabled = false,
+			rate = 2,
+			duration = 5 * 1000,
+		},
+		cooldown = 0,
+	},
+}
+
+require("lazy").setup({
+	require("plugins.nvim-tree"),
+	require("plugins.lualine"),
+	require("plugins.theme"),
+	require("plugins.telescope"),
+	require("plugins.treesitter"),
+	require("plugins.notify"),
+	require("plugins.gitsigns"),
+	require("plugins.autopairs"),
+	require("plugins.comment"),
+	require("plugins.project"),
+	require("plugins.runner"),
+	-- LSP
+	require("plugins.lsp.mason"),
+	require("plugins.lsp.lspconfig"),
+	require("plugins.lsp.cmp"),
+	require("plugins.lsp.dap"),
+	require("plugins.lsp.conform"),
+}, opts)