Field notebook: capture NPC lines, tear pages onto the board

A dialogue line gains a "✎ Note this" capture that saves it to a
per-playthrough notebook (migration 035 + notebook endpoints). The inventory
notebook lists captured pages in a handwriting font (Google "Reenie Beanie")
and "✂ Tear to board" drops a page onto the current board as a note exhibit
(reusing addNote), then removes the page. Board notes render handwritten too.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

server/index.ts

@@ -516,6 +516,23 @@ app.post('/api/playthroughs/:id/utterances/:uid/reach', async (req, res, next) =
     result.ok ? res.json({ earned: result.earned ?? false }) : res.status(404).json({ error: 'Not found' })
   } catch (error) { next(error) }
 })
+// Field notebook: capture NPC lines during play, list them, and remove (on tear/discard).
+app.get('/api/playthroughs/:id/notebook', async (req, res, next) => {
+  try { res.json(await narrative.notebookPages(String(req.params.id))) }
+  catch (error) { next(error) }
+})
+app.post('/api/playthroughs/:id/notebook', async (req, res, next) => {
+  try {
+    const page = await narrative.addNotebookPage(String(req.params.id), String(req.body?.text || ''), req.body?.utteranceId ? String(req.body.utteranceId) : null)
+    page ? res.status(201).json(page) : res.status(400).json({ error: 'Empty text or unknown playthrough' })
+  } catch (error) { next(error) }
+})
+app.delete('/api/playthroughs/:id/notebook/:pageId', async (req, res, next) => {
+  try {
+    const ok = await narrative.removeNotebookPage(String(req.params.id), String(req.params.pageId))
+    ok ? res.json({ ok: true }) : res.status(404).json({ error: 'Not found' })
+  } catch (error) { next(error) }
+})
 // The phone tool: the directory available on the current node, and dialing a number.
 app.get('/api/playthroughs/:id/phone', async (req, res, next) => {
   try { res.json(await narrative.phoneDirectory(String(req.params.id))) }