fix ruff/Ruff duplication

lua/plugins/nvim-lint.lua

@@ -15,7 +15,7 @@ return {
       typescriptreact = { "eslint_d" },
       markdown = { "markdownlint" },
       php = { "phpcs" },
-      python = { "ruff" },
+      python = { "ruff" },  -- Code quality/style checks (pyright handles types)
     }
 
     -- Helper: Find project-local executable, fallback to global
@@ -69,8 +69,18 @@ return {
     -- Configure markdownlint
     lint.linters.markdownlint.cmd = find_executable({ "markdownlint" }) or "markdownlint"
 
-    -- Configure ruff for Python
+    -- Configure ruff for Python linting (separate from formatting)
     lint.linters.ruff.cmd = find_executable({ "ruff" }) or "ruff"
+    lint.linters.ruff.args = {
+      "check",
+      "--select", "ALL",  -- All rules
+      "--ignore", "E501,E999",  -- Ignore line length (formatter handles) and syntax errors (pyright handles)
+      "--force-exclude",
+      "--quiet",
+      "--output-format", "json",
+      "--stdin-filename", function() return vim.api.nvim_buf_get_name(0) end,
+      "-",
+    }
 
     -- Auto-lint on these events
     local lint_augroup = vim.api.nvim_create_augroup("lint", { clear = true })