fix: add __filename and __dirname shims to nadle-lsp ESM banner

TypeScript uses __filename internally for case-sensitivity detection.
When bundled into ESM output, this is undefined. Add shims derived from
import.meta.url alongside the existing createRequire shim.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: nam-hle

packages/nadle-lsp/tsup.config.ts

@@ -13,6 +13,6 @@ export default defineConfig({
 	},
 	noExternal: ["vscode-languageserver", "vscode-languageserver-textdocument", "typescript"],
 	banner: {
-		js: "import { createRequire } from 'module'; const require = createRequire(import.meta.url);"
+		js: "import { createRequire } from 'module'; import { fileURLToPath } from 'url'; import { dirname } from 'path'; const require = createRequire(import.meta.url); const __filename = fileURLToPath(import.meta.url); const __dirname = dirname(__filename);"
 	}
 });