[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/widgets/proxyWidget.test.ts

@@ -2,8 +2,11 @@ import { describe, expect, test, vi } from 'vitest'
 
 import { registerProxyWidgets } from '@/core/graph/subgraph/proxyWidget'
 import { parseProxyWidgets } from '@/core/schemas/proxyWidget'
-import { LGraphNode } from '@/lib/litegraph/src/litegraph'
-import type { LGraphCanvas, SubgraphNode } from '@/lib/litegraph/src/litegraph'
+import {
+  LGraphNode,
+  type LGraphCanvas,
+  type SubgraphNode
+} from '@/lib/litegraph/src/litegraph'
 
 import {
   createTestSubgraph,