chore: remove unused package.json scripts

Remove format, format:check, lint:oxlint, lint:oxfmt — none are referenced
by any other script, CI workflow, or documentation. lint script already
delegates to scripts/lint.mts which calls oxlint/oxfmt directly.

Author: jdalton

package.json

@@ -674,11 +674,7 @@
     "cover": "node scripts/test/cover.mts",
     "dev": "node scripts/build/main.mts --watch",
     "fix": "node scripts/fix.mts",
-    "format": "oxfmt",
-    "format:check": "oxfmt --check",
     "lint": "node scripts/lint.mts",
-    "lint:oxlint": "oxlint .",
-    "lint:oxfmt": "oxfmt --check .",
     "security": "agentshield scan && { command -v zizmor >/dev/null && zizmor .github/ || echo 'zizmor not installed — run pnpm run setup to install'; }",
     "prepare": "husky",
     "prepublishOnly": "pnpm run build",