[style] migrate to @prettier/plugin-oxc for faster formatting

Replace @trivago/prettier-plugin-sort-imports with @prettier/plugin-oxc
and @ianvs/prettier-plugin-sort-imports for improved performance.

Changes:
- Add @prettier/plugin-oxc (Rust-based fast parser)
- Add @ianvs/prettier-plugin-sort-imports (import sorting compatible with oxc)
- Remove @trivago/prettier-plugin-sort-imports
- Update .prettierrc to use new plugins and compatible import order config
- Reformat all files with new plugin configuration

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

tests-ui/tests/utils/migration/migrateReroute.test.ts

@@ -1,5 +1,6 @@
 import fs from 'node:fs'
 import path from 'node:path'
+
 import { describe, expect, it } from 'vitest'
 
 import type { WorkflowJSON04 } from '@/platform/workflow/validation/schemas/workflowSchema'