docs: the guide around four things and two screens, new screenshots, the plan closed

The guide opens with documents, cards, notes and diary entries, and the
documents and plan screens, then walks the day with the scratchpad, the
info sheet and cards linked both ways. The README and the wiki's home say
the same in short, and show the scratchpad and the info sheet. The
screenshot script drops its Alt keys and takes both. PLAN.md records the
simplification's slices, what was left of its navigation fixes, and the
backlog fitted to the model.

scripts/screenshots.ts

@@ -278,6 +278,13 @@ await doc(thesis.id, 'Outline', `## Chapters\n\n1. Introduction\n2. Related work
 const uniLists = (await api('GET', `/spaces/${uni}/board`)).lists as { id: number }[]
 await api('POST', `/lists/${uniLists[0].id}/cards`, { title: 'Hand in exercise sheet 4', due_at: at(2, 10) })
 
+// The scratchpad: what was jotted down in passing, waiting to be sorted.
+for (const note of [
+  'tariffs-api added valid_from — ask whether it is a date or a timestamp',
+  'idea: show the run progress per source in the status page',
+  '# Dead-letter queue\nkeep failed jobs for 7 days, replay by hand',
+]) await api('POST', '/scratch', { body: note })
+
 // home
 await doc(home, 'Groceries', `- oat milk\n- coffee\n- lemons\n`)
 await api('PUT', `/nodes/${home}`, { name: 'home', has_board: false })
@@ -339,15 +346,10 @@ const named: Record<string, { code: string; keyCode: number }> = {
   Tab: { code: 'Tab', keyCode: 9 },
 }
 
-/** Keys as typed: `gh`, `?`, `<Escape>` for a named one, `<A-h>` with Alt. */
+/** Keys as typed: `gh`, `?`, `<Escape>` for a named one. */
 async function keys(sequence: string, pause = 250) {
-  for (const token of sequence.match(/<A-\w>|<\w+>|./g) ?? []) {
-    if (token.startsWith('<A-')) {
-      const key = token[3]
-      const params = { key, code: `Key${key.toUpperCase()}`, modifiers: 1 }
-      await send('Input.dispatchKeyEvent', { type: 'rawKeyDown', ...params })
-      await send('Input.dispatchKeyEvent', { type: 'keyUp', ...params })
-    } else if (token.startsWith('<')) {
+  for (const token of sequence.match(/<\w+>|./g) ?? []) {
+    if (token.startsWith('<')) {
       const key = token.slice(1, -1)
       const { code, keyCode } = named[key]
       const text = key === 'Enter' ? '\r' : undefined
@@ -393,7 +395,7 @@ await shot('document')
 await open('/n/work/projects')
 await keys('jl')
 await sleep(800)
-await keys('<A-h>kL')
+await keys('hkL')
 await sleep(800)
 await shot('tiles')
 
@@ -402,6 +404,11 @@ await keys('gh', 400)
 await sleep(800)
 await shot('history')
 
+await open('/n/work/projects/ingest-pipeline')
+await keys('gc', 400)
+await sleep(800)
+await shot('info')
+
 await open('/n/work/runbook')
 await keys('i')
 await sleep(500)
@@ -430,6 +437,12 @@ await sleep(800)
 await shot('calendar')
 await keys('<Escape>')
 
+await open('/n/work/runbook')
+await keys('Q')
+await sleep(800)
+await shot('scratch')
+await keys('<Escape>')
+
 await open('/n/work')
 await keys('/')
 await send('Input.insertText', { text: 'tariffs' })