[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>

build/plugins/generateImportMapPlugin.ts

@@ -1,7 +1,8 @@
+import { dirname, join } from 'node:path'
+
 import glob from 'fast-glob'
 import fs from 'fs-extra'
-import { dirname, join } from 'node:path'
-import { type HtmlTagDescriptor, type Plugin, normalizePath } from 'vite'
+import { normalizePath, type HtmlTagDescriptor, type Plugin } from 'vite'
 
 interface ImportMapSource {
   name: string