Move nvim config into nvim/ subdirectory

Prepare repo structure for storing multiple dotfile configs.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

nvim/lua/plugins/git.lua

@@ -0,0 +1,28 @@
+return {
+  {
+    "lewis6991/gitsigns.nvim",
+    event = { "BufReadPre", "BufNewFile" },
+    opts = {
+      on_attach = function(bufnr)
+        local gs = package.loaded.gitsigns
+        local map = function(mode, l, r, desc)
+          vim.keymap.set(mode, l, r, { buffer = bufnr, desc = desc })
+        end
+
+        map("n", "]h", gs.next_hunk, "Next hunk")
+        map("n", "[h", gs.prev_hunk, "Previous hunk")
+        map("n", "<leader>hs", gs.stage_hunk, "Stage hunk")
+        map("n", "<leader>hr", gs.reset_hunk, "Reset hunk")
+        map("n", "<leader>hp", gs.preview_hunk, "Preview hunk")
+        map("n", "<leader>hb", function() gs.blame_line({ full = true }) end, "Blame line")
+      end,
+    },
+  },
+  {
+    "kdheepak/lazygit.nvim",
+    dependencies = { "nvim-lua/plenary.nvim" },
+    keys = {
+      { "<leader>gg", "<cmd>LazyGit<cr>", desc = "LazyGit" },
+    },
+  },
+}