update

nvim/lua/plugins/lsp.lua

@@ -25,6 +25,32 @@ return {
         },
     },
 
+    -- lspsaga: LSP UI 增强(hover 滚动、智能定位、诊断、重命名等)
+    -- 替代手写 hover 滚动逻辑,自带 VSCode 风格滚动键 <C-d>/<C-u>/<C-f>/<C-b>
+    {
+        "nvimdev/lspsaga.nvim",
+        event = "LspAttach",
+        dependencies = {
+            "nvim-treesitter/nvim-treesitter",
+            "nvim-tree/nvim-web-devicons",
+        },
+        opts = {
+            lightbulb = { enable = false },
+            hover = {
+                max_width = 0.6,
+                max_height = 0.8,
+            },
+            ui = {
+                border = "rounded",
+                code_action = "bulb",
+            },
+            scroll_preview = {
+                scroll_down = "<C-d>",
+                scroll_up   = "<C-u>",
+            },
+        },
+    },
+
     -- LSP 配置（Neovim 0.11+ vim.lsp.config API）
     {
         "neovim/nvim-lspconfig",
@@ -33,11 +59,12 @@ return {
             "williamboman/mason.nvim",
             "williamboman/mason-lspconfig.nvim",
             "saghen/blink.cmp",
+            "nvimdev/lspsaga.nvim",
         },
         config = function()
             local caps = require("blink.cmp").get_lsp_capabilities()
 
-            -- LSP 附加时自动开启 inlay hints
+            -- LSP 附加时绑定 keymap + 开 inlay hints
             vim.api.nvim_create_autocmd("LspAttach", {
                 callback = function(args)
                     local map = function(keys, func, desc)
@@ -45,18 +72,27 @@ return {
                     end
                     map("gd", vim.lsp.buf.definition, "跳转到定义")
                     map("gr", vim.lsp.buf.references, "查找引用")
-                    map("K", vim.lsp.buf.hover, "悬浮文档")
-                    map("<leader>rn", vim.lsp.buf.rename, "重命名")
-                    map("<M-CR>", vim.lsp.buf.code_action, "代码操作")
-                    map("<leader>d", vim.diagnostic.open_float, "行诊断")
-                    map("[d", vim.diagnostic.goto_prev, "上一个诊断")
-                    map("]d", vim.diagnostic.goto_next, "下一个诊断")
+                    map("K",  "<cmd>Lspsaga hover_doc<CR>", "悬浮文档")
+                    map("<leader>rn", "<cmd>Lspsaga rename<CR>", "重命名")
+                    map("<M-CR>",      "<cmd>Lspsaga code_action<CR>", "代码操作")
+                    map("<leader>d",  "<cmd>Lspsaga show_line_diagnostics<CR>", "行诊断")
+                    map("[d",          "<cmd>Lspsaga diagnostic_jump_prev<CR>", "上一个诊断")
+                    map("]d",          "<cmd>Lspsaga diagnostic_jump_next<CR>", "下一个诊断")
 
                     -- 开启 inlay hints
                     vim.lsp.inlay_hint.enable(true, { bufnr = args.buf })
                 end,
             })
 
+            -- 诊断全局配置
+            vim.diagnostic.config({
+                virtual_text = false,
+                signs = true,
+                underline = true,
+                update_in_insert = false,
+                float = { border = "rounded" },
+            })
+
             -- Lua
             vim.lsp.config['lua_ls'] = {
                 cmd = { 'lua-language-server' },