chore(lint): adopt oxc-config-mantine for the oxlint ruleset

Author: gfazioli

oxlint.config.mjs

@@ -0,0 +1,17 @@
+import { defineConfig } from 'oxlint';
+import { oxlint } from 'oxc-config-mantine';
+
+export default defineConfig({
+  ...oxlint,
+  rules: {
+    ...oxlint.rules,
+    // Upstream ships `curly: 'error'` (defaults to "all" → braces always required), which
+    // conflicts with oxfmt: the formatter collapses single-statement bodies onto the condition
+    // line (`if (x) return;`), so a freshly-formatted file fails its own lint step.
+    // "multi-line" allows exactly what oxfmt emits while still requiring braces for multi-line
+    // bodies. Do not drop this override when bumping oxc-config-mantine.
+    curly: ['error', 'multi-line'],
+  },
+  // Upstream ignores 'docs/out' and 'package/dist' but not 'docs/.next', which our docs sites have.
+  ignorePatterns: ['**/*.{mjs,cjs,js,d.ts,d.mts}', 'docs/.next', 'docs/out', 'package/dist'],
+});

oxlint.config.ts

@@ -15,7 +15,7 @@
     "format:write": "oxfmt --write \"**/*.{ts,tsx,css}\"",
     "typecheck": "tsc --noEmit && cd docs && npm run typecheck",
     "lint": "npm run oxlint && npm run stylelint",
-    "oxlint": "oxlint .",
+    "oxlint": "oxlint -c oxlint.config.mjs .",
     "stylelint": "stylelint '**/*.css' --cache",
     "jest": "jest",
     "test": "npm run syncpack && npm run format:test && npm run typecheck && npm run lint && npm run jest",
@@ -62,6 +62,7 @@
     "jest-axe": "^11.0.0",
     "jest-environment-jsdom": "^29.7.0",
     "mantine-docgen-script": "^1.6.0",
+    "oxc-config-mantine": "^1.0.0",
     "oxfmt": "^0.60.0",
     "oxlint": "^1.75.0",
     "postcss": "^8.5.23",

package.json

@@ -9049,6 +9049,7 @@ __metadata:
     jest-axe: "npm:^11.0.0"
     jest-environment-jsdom: "npm:^29.7.0"
     mantine-docgen-script: "npm:^1.6.0"
+    oxc-config-mantine: "npm:^1.0.0"
     oxfmt: "npm:^0.60.0"
     oxlint: "npm:^1.75.0"
     postcss: "npm:^8.5.23"
@@ -10328,6 +10329,16 @@ __metadata:
   languageName: node
   linkType: hard
 
+"oxc-config-mantine@npm:^1.0.0":
+  version: 1.0.0
+  resolution: "oxc-config-mantine@npm:1.0.0"
+  peerDependencies:
+    oxfmt: ^0.55.0
+    oxlint: ^1.70.0
+  checksum: 10c0/0adcb4872a889984b2f8f3cd60a105c23d3902a50ba9545a35c312de02b2768fefe9a2cd245134b4efb5442a63848299607d537912feff9844450c6c7c0ba9a8
+  languageName: node
+  linkType: hard
+
 "oxc-parser@npm:^0.127.0":
   version: 0.127.0
   resolution: "oxc-parser@npm:0.127.0"