feat: add todo.txt support.

lua/plugins/init.lua

@@ -5,3 +5,4 @@ require("plugins.mini")
 require("plugins.mini.init")
 require("plugins.markdown")
 require("plugins.conform")
+require("plugins.todotxt")

lua/plugins/todotxt.lua

@@ -0,0 +1,41 @@
+vim.pack.add({
+  { src = "https://github.com/phrmendes/todotxt.nvim" },
+})
+
+require("todotxt").setup({
+  todotxt = vim.env.HOME .. "/docs/sb/todo/todo.txt",
+  donetxt = vim.env.HOME .. "/docs/sb/todo/done.txt",
+  ghost_text = {
+    enable = true,
+    mappings = {
+      ["(A)"] = "now",      -- High priority tasks
+      ["(B)"] = "next",     -- Medium priority tasks
+      ["(C)"] = "today",    -- Lower priority tasks
+      ["(D)"] = "tomorrow", -- Even lower priority
+      ["(E)"] = "this week",
+      ["(F)"] = "next week",
+    },
+    prefix = " ",          -- Text prefix
+    highlight = "Comment", -- Highlight group
+  }
+})
+
+vim.filetype.add({
+  filename = {
+    ["todo.txt"] = "todotxt",
+    ["done.txt"] = "todotxt",
+  },
+})
+
+vim.keymap.set("n", "<leader>tn", "<cmd>TodoTxt new<cr>", { desc = "New todo entry" })
+vim.keymap.set("n", "<leader>tt", "<cmd>TodoTxt<cr>", { desc = "Toggle todo.txt" })
+vim.keymap.set("n", "<leader>td", "<cmd>DoneTxt<cr>", { desc = "Toggle done.txt" })
+vim.keymap.set("n", "<leader>tg", "<cmd>TodoTxt ghost<cr>", { desc = "Toggle ghost text" })
+vim.keymap.set("n", "<cr>", "<Plug>(TodoTxtToggleState)", { desc = "Toggle task state" })
+vim.keymap.set("n", "<c-c>n", "<Plug>(TodoTxtCyclePriority)", { desc = "Cycle priority" })
+vim.keymap.set("n", "<leader>tm", "<Plug>(TodoTxtMoveDone)", { desc = "Move done tasks" })
+vim.keymap.set("n", "<leader>tss", "<Plug>(TodoTxtSortTasks)", { desc = "Sort tasks (default)" })
+vim.keymap.set("n", "<leader>tsp", "<Plug>(TodoTxtSortByPriority)", { desc = "Sort by priority" })
+vim.keymap.set("n", "<leader>tsc", "<Plug>(TodoTxtSortByContext)", { desc = "Sort by context" })
+vim.keymap.set("n", "<leader>tsP", "<Plug>(TodoTxtSortByProject)", { desc = "Sort by project" })
+vim.keymap.set("n", "<leader>tsd", "<Plug>(TodoTxtSortByDueDate)", { desc = "Sort by due date" })