fix(lsp): drop hand-rolled biome config

root_dir was computed once, at startup, against whatever buffer happened
to be current — freezing one path for the session and breaking
lspconfig's local-binary lookup, which reads config.root_dir.

Everything overridden here is already handled better upstream: cmd
prefers the project-local biome, root_dir is monorepo-aware and resolved
per buffer, the filetypes list is wider, and the server only attaches
where a biome config applies. Only the formatting opt-out stays, since
conform owns that.

Also adds virtual_lines for the line under the cursor, which pairs with
the existing virtual_text = false.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

lua/configs/lspconfig.lua

@@ -9,18 +9,11 @@ M.defaults = function()
 
   vim.lsp.inlay_hint.enable()
 
+  -- lspconfig's own biome config already prefers the project-local binary, detects
+  -- monorepo roots per buffer, and only attaches where a biome config applies.
+  -- Formatting is the one thing overridden here: conform owns it.
   vim.lsp.config("biome", {
-    cmd = {
-      -- prefer local binary if exists
-      vim.fn.filereadable "./node_modules/.bin/biome" == 1 and "./node_modules/.bin/biome" or "biome",
-      "lsp-proxy",
-    },
-    filetypes = { "javascript", "javascriptreact", "typescript", "typescriptreact", "json", "jsonc" },
-    root_dir = vim.fs.root(0, { "biome.json", "biome.jsonc", "biome.config.ts", "package.json", ".git" }),
-    settings = {}, -- add Biome-specific settings if needed
-    ---@diagnostic disable-next-line: unused-local
-    on_attach = function(client, _bufnr)
-      -- disable formatting if you want Conform or another tool to handle formatting
+    on_attach = function(client)
       client.server_capabilities.documentFormattingProvider = false
     end,
   })
@@ -53,6 +46,7 @@ M.defaults = function()
     underline = true,
     severity_sort = true,
     virtual_text = false,
+    virtual_lines = { current_line = true },
     float = {
       focusable = false,
       style = "minimal",