fix: skip oxlint invocation in lint:changes when no lintable files changed

Filter the changed-file list to lintable extensions before handing it to
oxlint, so it's only invoked when there's actually something to lint.

Author: joyenjoyer

package.json

@@ -24,7 +24,7 @@
     "test:vitest-watch": "playwright install chromium && vitest --project browser --project node",
     "test:vitest-browser-ui": "playwright install chromium && vitest --project browser --browser.headless=false --ui",
     "lint": "pnpm -r --stream lint",
-    "lint:changes": "git diff --name-only $(git merge-base HEAD origin/master)..HEAD | xargs -r oxlint --format=unix",
+    "lint:changes": "git diff --diff-filter=ACMR --name-only $(git merge-base HEAD origin/master)..HEAD | { grep -E '\\.(js|jsx|ts|tsx|mjs|cjs)$' || true; } | xargs -r oxlint --format=unix",
     "lint:fix": "pnpm -r --stream lint:fix",
     "lint:commits": "commitlint --from=HEAD^1",
     "bootstrap": "node scripts/bootstrap.mjs",