feat(plugin): replace Lspsaga with native LSP & Snacks integration

Why: Clean up the heavy Lspsaga UI and adopt built‑in LSP plus Snacks for better performance and maintainability.

- New Features
  - Use native `vim.lsp.buf` functions for code actions, diagnostics, rename, etc.
  - Integrate Snacks picker for definitions, references, symbols, and type definitions.
- Enhancements  - Update keybindings to use Snacks and native APIs instead of Lspsaga.
  - Drop `nvimdev/Lspsaga.nvim`, `typescript-tools.nvim`, and unused `plenary.nvim`.
  - Preserve mini.misc auto‑root and other minor improvements.
- Bug Fixes
  - Resolve broken Lspsaga UI configuration and related mappings.
  - Remove stale `<leader>la` mapping that referenced Lspsaga.

plugin/01-lsp.lua

@@ -2,7 +2,6 @@ add({
     'mason-org/mason.nvim', -- lsp installer manager
     'mason-org/mason-lspconfig.nvim', -- lsp installer
     'neovim/nvim-lspconfig', -- lsp config
-    'nvimdev/Lspsaga.nvim', -- lsp ui
     'rachartier/tiny-inline-diagnostic.nvim', -- inline diagnostic
     'rachartier/tiny-code-action.nvim', -- code action
 })
@@ -28,23 +27,6 @@ require('mason-lspconfig').setup({
 -- improve neovim lsp experience
 vim.api.nvim_create_autocmd('LspAttach', {
     callback = function()
-        require('lspsaga').setup({
-            ui = {
-                theme = 'round',
-                border = 'rounded',
-                devicon = true,
-                title = true,
-                winblend = 1,
-                expand = ' ',
-                collapse = ' ',
-                preview = '',
-                code_action = '󰠠 ',
-                diagnostic = ' ',
-                incoming = ' ',
-                outgoing = ' ',
-                hover = ' ',
-            },
-        })
 
         --inline diagnostic
         require('tiny-inline-diagnostic').setup({

plugin/editor.lua

@@ -11,9 +11,7 @@ add({
     'numToStr/Navigator.nvim', -- navigator
     'm4xshen/hardtime.nvim', -- workflow
     'mg979/vim-visual-multi', -- multiple cursors
-    'pmizio/typescript-tools.nvim', -- typescript tools
     { src = 'iamcco/markdown-preview.nvim', build = 'cd app && npm install' },
-    'nvim-lua/plenary.nvim', -- dependency for typescript-tools
     -- 'nvim-flutter/flutter-tools.nvim', -- flutter tools
 })
 
@@ -69,27 +67,3 @@ vim.keymap.set('i', '<A-x>', function()
     return vim.fn['codeium#Clear']()
 end, { expr = true, silent = true })
 
--- typescript tools
-require('typescript-tools').setup({
-    filetypes = { 'javascript', 'javascriptreact', 'typescript', 'typescriptreact' },
-    settings = {
-        separate_diagnostic_server = true,
-        publish_diagnostic_on = 'insert_leave',
-        expose_as_code_action = {
-            'fix_all',
-            'add_missing_imports',
-            'remove_unused',
-            'remove_unused_imports',
-            'organize_imports',
-        },
-        tsserver_plugins = {},
-        complete_function_calls = false,
-        include_completions_with_insert_text = true,
-        code_lens = 'off',
-        disable_member_code_lens = true,
-        jsx_close_tag = {
-            enable = false,
-            filetypes = { 'javascriptreact', 'typescriptreact' },
-        },
-    },
-})

plugin/mini.lua

@@ -25,8 +25,6 @@ require("mini.files").setup({
 })
 
 require("mini.misc").setup({
-	-- restore cursor position on file reopen
-	require("mini.misc").setup_restore_cursor(),
 	-- automated change of current directory
 	require("mini.misc").setup_auto_root(),
 })

plugin/whichkey.lua

@@ -129,21 +129,20 @@ local normal_mappings = {
 	{ "<leader>it", ":put =strftime('## %r')<cr>", desc = "Time" },
 
 	{ "<leader>l", group = " LSP" },
-	{ "<leader>la", ":Lspsaga code_action<cr>", desc = "Code Action" },
-	{ "<leader>ld", ":Lspsaga goto_definition<cr>", desc = "Goto Definition" },
-	{ "<leader>lf", ":Lspsaga finder<cr>", desc = "Finder" },
-	{ "<leader>lh", ":Lspsaga hover_doc<cr>", desc = "Hover" },
+	{ "<leader>la", ":lua vim.lsp.buf.code_action()<cr>", desc = "Code Action" },
+	{ "<leader>ld", ":lua Snacks.picker.lsp_definitions()<cr>", desc = "Goto Definition" },
+	{ "<leader>lf", ":lua Snacks.picker.lsp_references()<cr>", desc = "Finder (References)" },
+	{ "<leader>lh", ":lua vim.lsp.buf.hover()<cr>", desc = "Hover" },
 	{ "<leader>lI", ":LspInfo<cr>", desc = "LSP Info" },
-	{ "<leader>lj", ":Lspsaga diagnostic_jump_next<cr>", desc = "Next Diagnostic" },
-	{ "<leader>lk", ":Lspsaga diagnostic_jump_prev<cr>", desc = "Prev Diagnostic" },
-	{ "<leader>lo", ":Lspsaga outline<cr>", desc = "Outline" },
-	{ "<leader>lp", ":Lspsaga peek_definition<cr>", desc = "Peek Definition" },
+	{ "<leader>lj", ":lua vim.diagnostic.goto_next()<cr>", desc = "Next Diagnostic" },
+	{ "<leader>lk", ":lua vim.diagnostic.goto_prev()<cr>", desc = "Prev Diagnostic" },
+	{ "<leader>lo", ":lua Snacks.picker.lsp_symbols()<cr>", desc = "Outline (Symbols)" },
+	{ "<leader>lp", ":lua Snacks.picker.lsp_definitions()<cr>", desc = "Peek Definition" },
 	{ "<leader>lq", ":LspStop<cr>", desc = "Stop LSP" },
 	{ "<leader>lQ", ":LspRestart<cr>", desc = "Restart LSP" },
-	{ "<leader>lr", ":Lspsaga rename<cr>", desc = "Rename" },
-	{ "<leader>lR", ":Lspsaga project_replace<cr>", desc = "Replace" },
-	{ "<leader>lt", ":Lspsaga goto_type_definition<cr>", desc = "Goto Type Definition" },
-	{ "<leader>lT", ":Lspsaga peek_type_definition<cr>", desc = "Peek Type Definition" },
+	{ "<leader>lr", ":lua vim.lsp.buf.rename()<cr>", desc = "Rename" },
+	{ "<leader>lt", ":lua Snacks.picker.lsp_type_definitions()<cr>", desc = "Goto Type Definition" },
+	{ "<leader>lT", ":lua Snacks.picker.lsp_type_definitions()<cr>", desc = "Peek Type Definition" },
 
 	{ "<leader>o", group = " Options" },
 	{ "<leader>oi", "vim.show_pos", desc = "Inspect Position" },
@@ -244,7 +243,7 @@ local visual_mappings = {
 	{ "<leader>gu", ":'<,'>Gitsigns undo_stage_hunk<cr>", desc = "Undo Stage Hunk" },
 
 	{ "<leader>l", group = " LSP" },
-	{ "<leader>la", ":<C-U>Lspsaga range_code_action<cr>", desc = "Code Action" },
+	{ "<leader>la", ":lua vim.lsp.buf.code_action()<cr>", desc = "Code Action" },
 
 	-- { "<leader>o", group = " Options" },
 
@@ -270,7 +269,7 @@ local no_leader_mappings = {
 	{ "<Tab>", ":bnext<cr>", desc = "Next Buffer" },
 	{ "<S-Tab>", ":bprevious<cr>", desc = "Previous Buffer" },
 
-	{ "K", ":Lspsaga hover_doc<cr>", desc = "LSP Hover" },
+	{ "K", ":lua vim.lsp.buf.hover()<cr>", desc = "LSP Hover" },
 	{ "Q", ":qall!<cr>", desc = "Force Quit!" },
 	{ "U", ":redo<cr>", desc = "Redo" },
 
@@ -282,7 +281,7 @@ local no_leader_mappings = {
 	{ "]g", ":Gitsigns next_hunk<cr>", desc = "Git Hunk" },
 	{ "]o", group = "Textobjects" },
 
-	{ "gd", ":Lspsaga goto_definition<cr>", desc = "Goto Definition" },
+	{ "gd", ":lua Snacks.picker.lsp_definitions()<cr>", desc = "Goto Definition" },
 }
 
 wk.add(normal_mappings)