Fix --synctex argument order for Typst compile

Typst's CLI requires options before positional arguments (INPUT OUTPUT).
Placing --synctex after output.pdf caused it to be treated as an extra
positional arg and rejected with 'unexpected argument'.

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

services/clsi/app/js/TypstRunner.js

@@ -61,7 +61,7 @@ function _buildTypstCommand(mainFile) {
   // --synctex generates output.synctex.gz alongside the PDF, enabling
   // bidirectional editor↔PDF sync (same infrastructure as LaTeX SyncTeX).
   const inputPath = `$COMPILE_DIR/${mainFile}`
-  const cmd = `quarto typst compile ${inputPath} output.pdf --synctex output.synctex.gz 2>&1`
+  const cmd = `quarto typst compile --synctex output.synctex.gz ${inputPath} output.pdf 2>&1`
   return ['/bin/sh', '-c', cmd]
 }