Revert "chore: add browser diagnostic script for Typst highlighting"

This reverts commit 8c9088d054.

diagnostic-typst.js

@@ -1,53 +0,0 @@
-/**
- * Typst syntax highlighting diagnostics.
- * Paste this entire file into the browser dev tools console
- * while a Typst file is open in the editor.
- */
-
-// 1. Find the active CodeMirror editor view
-const view = [...document.querySelectorAll('.cm-editor')]
-  .map(el => el.cmView?.view)
-  .find(Boolean)
-
-if (!view) {
-  console.error('No CodeMirror view found — make sure a file is open in the editor')
-} else {
-  // 2. Show the language currently active
-  const lang = view.state.facet(
-    window.CM?.language?.language ?? view.state.facet.constructor
-  )
-  console.log('Language:', view.state.languageDataAt('commentTokens', 0))
-
-  // 3. Print the top of the parse tree (first 800 chars)
-  const tree = view.state.tree
-  console.log('Parse tree (top):\n' + tree.toString().slice(0, 800))
-
-  // 4. Walk the first 20 leaf nodes and show their type + text
-  console.log('\nFirst 20 leaf nodes:')
-  let count = 0
-  tree.iterate({
-    enter(node) {
-      if (node.firstChild) return  // skip non-leaf
-      if (count++ >= 20) return false
-      const text = view.state.doc.sliceString(node.from, node.to)
-      console.log(`  [${node.name}] ${JSON.stringify(text.slice(0, 40))}`)
-    }
-  })
-
-  // 5. Check whether the Typst heading tokens exist at line 15-ish
-  const doc = view.state.doc
-  for (let ln = 1; ln <= Math.min(doc.lines, 20); ln++) {
-    const line = doc.line(ln)
-    if (line.text.trimStart().startsWith('=')) {
-      console.log(`\nLine ${ln} starts with '=': "${line.text}"`)
-      tree.iterate({
-        from: line.from,
-        to: line.to,
-        enter(node) {
-          const t = doc.sliceString(node.from, node.to)
-          console.log(`  node: ${node.name}  text: ${JSON.stringify(t.slice(0, 60))}`)
-        }
-      })
-    }
-  }
-}