Initial Commit - Add nvim config

Signed-off-by: Daniel Henry <iamdanhenry@gmail.com>

.config/nvim/lua/c/config.lua

@@ -0,0 +1,46 @@
+-- C language pack: editor behavior for C/C++
+-- We keep this file "pure config" (no keymaps) to match your structure.
+
+-- Use `make` for builds in C/C++ buffers.
+-- Quickfix will parse clang/gcc errors by default, so :make populates the list.
+vim.api.nvim_create_autocmd("FileType", {
+  pattern = { "c", "cpp" },
+  callback = function(args)
+    -- Buffer-local so other languages can pick their own build tools later.
+    vim.bo[args.buf].makeprg = "make -j"
+  end,
+})
+
+-- Friendly heads-up if compile_commands.json isn't present.
+-- clangd *can* work without it, but accuracy (includes/defines/flags) is much better with it.
+do
+  local warned = false
+  vim.api.nvim_create_autocmd({ "BufReadPost", "BufNewFile" }, {
+    pattern = { "*.c", "*.h", "*.cpp", "*.hpp" },
+    callback = function()
+      if warned then return end
+      local root = vim.fs.root(0, { "compile_commands.json", ".git", "Makefile", "makefile" })
+      -- Look specifically for compile_commands.json upward from the file
+      local found = vim.fs.find("compile_commands.json", { upward = true, path = vim.fs.dirname(vim.api.nvim_buf_get_name(0)) })[1]
+      if not found and root then
+        warned = true
+        vim.schedule(function()
+          vim.notify(
+            "clangd: compile_commands.json not found.\n" ..
+            "Run:  bear -- make -j\n" ..
+            "Tip: re-run after changing flags or adding files.",
+            vim.log.levels.WARN,
+            { title = "C/clangd" }
+          )
+        end)
+      end
+    end,
+  })
+end
+
+-- Treat *.h as C (applies globally; easiest approach for a C-centric workflow)
+vim.filetype.add({
+  extension = {
+    h = "c",
+  },
+})