Can I vibecode Workflowy?

Extend the outliner in this folder so it works offline. Requirements:

- Cache the app shell with a service worker and keep the nodes you have opened in IndexedDB
  (`dexie`), with a queue of edits made while offline.
- On reconnect, replay the queue against the server; each node carries an `updated` timestamp
  and the server keeps the newest write per field, never dropping a node.
- When a node was changed in two places, keep both texts: store the older one as a child bullet
  named "conflict" so nothing is lost.
- Show an offline badge and the count of queued edits.
- Update the README with the merge rules.

Add mirrors to the outliner in this folder. Requirements:

- A mirror is a node that points at an original node: it shows the original's text, note and
  children, and editing any of them edits the original.
- Create one with Ctrl/Cmd-Shift-M on a cut bullet, show a small badge with the number of mirrors,
  and let the original be found from a mirror.
- Deleting the original promotes the oldest mirror to be the original; deleting a mirror never
  deletes the original.
- Block cycles: a node can't be mirrored inside its own subtree.
- Tests for deleting, moving and completing a mirrored branch. Update the README.

Add dates to the outliner in this folder. Requirements:

- Recognise dates typed in a bullet ("tomorrow", "next fri", 2026-12-01, "!due 3/14") with
  `chrono-node`, show them as chips, and store the parsed date on the node.
- An Agenda page grouping bullets into Overdue, Today, Next 7 days and Later; completing a
  bullet there completes it in the tree.
- Recurring dates ("every monday") create the next bullet when you complete the current one.
- Use the local time zone, and test the days around the clock changes.
- Update the README.

Add read-only sharing to the outliner in this folder. Requirements:

- A "Share" action on any bullet that creates a random link /s/<token> for that subtree;
  list and revoke links from a settings page.
- The shared page is server-rendered HTML with the bullets, notes and completed state, no editing,
  and `noindex`; it never reveals siblings or parents outside the branch.
- Optional expiry date per link, and a view counter that stores counts only, no IP addresses.
- Update the README with the privacy note.