chore: add lefthook pre-commit hook for oxfmt

lefthook.yml

@@ -0,0 +1,7 @@
+pre-commit:
+  parallel: true
+  commands:
+    oxfmt:
+      glob: "*.{ts,tsx,js,jsx,mjs,cjs,json,jsonc,md,mdx,yaml,yml,css,html}"
+      run: pnpm exec oxfmt {staged_files}
+      stage_fixed: true

package.json

@@ -10,10 +10,12 @@
     "fmt": "oxfmt",
     "fmt:check": "oxfmt --check",
     "changeset:create": "changeset",
-    "changeset:publish": "pnpm build && changeset publish"
+    "changeset:publish": "pnpm build && changeset publish",
+    "prepare": "lefthook install"
   },
   "devDependencies": {
     "@changesets/cli": "^2.31.0",
+    "lefthook": "2.1.6",
     "oxfmt": "catalog:",
     "oxlint": "catalog:",
     "turbo": "^2.9.14"

pnpm-workspace.yaml

@@ -37,6 +37,9 @@ allowBuilds:
   msw: false
   "@tailor-platform/sdk": false
   "@prisma/engines": false
+  # lefthook's postinstall installs git hooks; the root `prepare` script
+  # handles that via `lefthook install` instead.
+  lefthook: false
 
 # Detect provenance or publisher trust downgrades in dependency updates
 trustPolicy: no-downgrade