feat: add Neovim agent review workflow

modules/capabilities/neovim/default.nix

@@ -174,6 +174,7 @@ in
               render-markdown-nvim
               lualine-nvim
               gitsigns-nvim
+              diffview-nvim
               zen-mode-nvim
               which-key-nvim
             ];

modules/capabilities/neovim/lua-config/lua/autocmds.lua

@@ -1,3 +1,9 @@
+vim.api.nvim_create_autocmd({ "FocusGained", "BufEnter", "TermLeave" }, {
+  desc = "Reload externally changed files without discarding unsaved edits",
+  group = vim.api.nvim_create_augroup("lux-checktime", { clear = true }),
+  command = "checktime",
+})
+
 vim.api.nvim_create_autocmd("TextYankPost", {
   desc = "Highlight yanked text",
   group = vim.api.nvim_create_augroup("lux-highlight-yank", { clear = true }),

modules/capabilities/neovim/lua-config/lua/plugins/ui.lua

@@ -74,10 +74,30 @@ require("lz.n").load({
           end
           map_hunk("]h", "next", "Next git hunk")
           map_hunk("[h", "prev", "Previous git hunk")
+          vim.keymap.set("n", "<leader>gp", gs.preview_hunk, { buffer = bufnr, desc = "Preview git hunk" })
+          vim.keymap.set("n", "<leader>gs", gs.stage_hunk, { buffer = bufnr, desc = "Stage git hunk" })
         end,
       })
     end,
   },
+  {
+    "diffview.nvim",
+    cmd = { "DiffviewOpen", "DiffviewClose", "DiffviewRefresh", "DiffviewFileHistory" },
+    keys = {
+      {
+        "<leader>gd",
+        function()
+          vim.cmd("DiffviewOpen -C" .. vim.fn.fnameescape(require("project").root()))
+        end,
+        desc = "Review project changes",
+      },
+      { "<leader>gq", "<cmd>DiffviewClose<cr>", desc = "Close git review" },
+      { "<leader>gr", "<cmd>DiffviewRefresh<cr>", desc = "Refresh git review" },
+    },
+    after = function()
+      require("diffview").setup({})
+    end,
+  },
   {
     "zen-mode.nvim",
     cmd = "ZenMode",
@@ -108,6 +128,7 @@ require("lz.n").load({
           { "<leader>b", group = "Buffers" },
           { "<leader>c", group = "Code" },
           { "<leader>d", group = "Diagnostics" },
+          { "<leader>g", group = "Git" },
           { "<leader>n", group = "Notes" },
           { "<leader>q", group = "Database" },
           { "<leader>r", group = "HTTP" },