chore: Replace Prettier with oxfmt and ESLint with oxlint (#119)

pnpm lint runs oxlint and pnpm format runs oxfmt: lint ~0.3s instead of ~20s, format check ~0.2s instead of ~11s, with far less memory. Configs come from the official migration tools (.oxlintrc.json from eslint.config.js, .oxfmtrc.json from the Prettier config); six new findings fixed or suppressed in 4 files. No code is reformatted.

Claude-Session: https://claude.ai/code/session_01VUYsdXA2nkF5v6zsC93dpn
Co-authored-by: jaw52 <[email protected]>

package.json

@@ -12,8 +12,8 @@
     "tauri": "tauri",
     "test": "vitest run",
     "test:watch": "vitest",
-    "lint": "eslint .",
-    "format": "prettier --write .",
+    "lint": "oxlint",
+    "format": "oxfmt",
     "typecheck": "tsrs --noEmit && tsrs -p tsconfig.node.json --noEmit && tsrs -p perf --noEmit && tsrs -p scripts --noEmit",
     "gen:bindings": "cargo test -p openidea --test export_bindings",
     "gen:theme-docs": "node scripts/theme/gen-docs.ts",
@@ -59,7 +59,6 @@
     "zustand": "^5.0.15"
   },
   "devDependencies": {
-    "@eslint/js": "^10.0.1",
     "@playwright/test": "^1.64.1",
     "@tauri-apps/cli": "^2",
     "@testing-library/jest-dom": "^7.0.1",
@@ -70,13 +69,11 @@
     "@types/react": "^19.1.8",
     "@types/react-dom": "^19.1.6",
     "@vitejs/plugin-react": "^6.0.2",
-    "eslint": "^10.13.0",
-    "eslint-plugin-react-hooks": "^7.1.1",
     "jsdom": "^30.1.3",
-    "prettier": "^3.9.10",
+    "oxfmt": "^0.74.0",
+    "oxlint": "^1.89.0",
     "tsrs": "^0.20.0-ts7.1.0-beta",
     "typescript": "~6.0.3",
-    "typescript-eslint": "^8.71.2",
     "vite": "^8.0.16",
     "vitest": "^5.0.5"
   }