Unify indentation to tabs and add keymaps/pickers

- Convert 4-space indentation to tabs across all lua files
- Add <C-s> save file and <C-c> copy whole file keymaps
- Add mini.pick keymaps: <leader>fa (find all), <leader>fh (help),
  <leader>fo (oldfiles), <leader>fz (buffer lines)
- Change <leader>fw to grep_live, <leader>vh to <leader>fh
- Fix conform lazy-loading buffer reference

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

lua/keymaps.lua

@@ -11,8 +11,12 @@ map("v", ">", ">gv", { desc = "Indent and keep selection" })
 
 map("n", "J", "mzJ`z", { desc = "Join lines without moving cursor" })
 
-map("n", "<leader>ss", [[:%s/\<<C-r><C-w>\>/<C-r><C-w>/gI<Left><Left><Left>]],
+map(
-    { desc = "Replace word cursor is on globally" })
+	"n",
+	"<leader>ss",
+	[[:%s/\<<C-r><C-w>\>/<C-r><C-w>/gI<Left><Left><Left>]],
+	{ desc = "Replace word cursor is on globally" }
+)
 map("v", "<leader>ss", ":s/\\%V", { desc = "Search and replace in visual selection" })
 
 -- general
@@ -27,6 +31,9 @@ vim.keymap.set("n", "<leader>u", function()
 	require("undotree").open()
 end, { desc = "Toggle Builtin Undotree" })
 
+map("n", "<C-s>", "<cmd>w<CR>", { desc = "Save file" })
+map("n", "<C-c>", "<cmd>%y+<CR>", { desc = "Copy whole file" })
+
 map("t", "<C-x>", "<c-\\><c-n>", { desc = "Escape termainl" })
 map("n", "<leader>tt", ":term<CR>", { desc = "Open new terminal" })
 

lua/lsp.lua

@@ -32,11 +32,13 @@ local function setup_conform()
 	})
 end
 
-lazy.on_event("conform", "BufWritePre", "*", function(args)
+lazy.on_event("conform", "BufWritePre", "*", function()
 	setup_conform()
-    -- 首次保存时手动触发格式化（setup 注册的 autocmd 不会在同一次事件中生效）
+	-- conform 的 setup 注册了 BufWritePre，但新 autocmd 不会在同一次事件中触发
-    if vim.b[args.buf].autoformat ~= false and vim.g.autoformat ~= false then
+	-- 所以这里手动调用 format 补偿第一次保存
-        require("conform").format({ bufnr = args.buf, timeout_ms = 500, lsp_fallback = true })
+	local bufnr = vim.api.nvim_get_current_buf()
+	if vim.b[bufnr].autoformat ~= false and vim.g.autoformat ~= false then
+		require("conform").format({ bufnr = bufnr, timeout_ms = 500, lsp_fallback = true })
 	end
 end)
 

lua/pack.lua

@@ -77,12 +77,8 @@ lazy.on_keys("pick", "<leader>ff", "n", load_pick, function()
 end, { desc = "Mini File Picker" })
 
 lazy.on_keys("pick", "<leader>fw", "n", load_pick, function()
-    require("mini.pick").builtin.grep({ pattern = vim.fn.expand("<cword>") })
+	require("mini.pick").builtin.grep_live()
-end, { desc = "Grep word/Search word" })
+end, { desc = "Live grep in project" })
-
-lazy.on_keys("pick", "<leader>vh", "n", load_pick, function()
-    require("mini.pick").builtin.help()
-end, { desc = "Mini Help" })
 
 lazy.on_keys("pick", "<leader>ds", "n", load_pick, function()
 	require("mini.extra").pickers.diagnostic()
@@ -92,6 +88,22 @@ lazy.on_keys("pick", "<leader>sk", "n", load_pick, function()
 	require("mini.extra").pickers.keymaps()
 end, { desc = "Search keymaps" })
 
+lazy.on_keys("pick", "<leader>fa", "n", load_pick, function()
+	require("mini.pick").builtin.cli({ command = { "rg", "--files", "--hidden", "--no-ignore", "--color=never" } })
+end, { desc = "Find all files (including hidden/ignored)" })
+
+lazy.on_keys("pick", "<leader>fh", "n", load_pick, function()
+	require("mini.pick").builtin.help()
+end, { desc = "Search help tags" })
+
+lazy.on_keys("pick", "<leader>fo", "n", load_pick, function()
+	require("mini.extra").pickers.oldfiles()
+end, { desc = "Search oldfiles" })
+
+lazy.on_keys("pick", "<leader>fz", "n", load_pick, function()
+	require("mini.extra").pickers.buf_lines({ scope = "current" })
+end, { desc = "Search in current buffer" })
+
 -- mini.completion - InsertEnter
 lazy.on_event("completion", "InsertEnter", "*", function()
 	require("mini.completion").setup({