Template-created pages (weekly report, project doc, meeting notes, to-do
list, ...) were persisted without block ids. The editor assigned ids
client-side, but the realtime room loaded the raw id-less content and sent
it back on 'sync'; applySync then merged id-less server blocks with local
blocks, producing data-bid='undefined' collisions and duplicated/shuffled
lines as soon as the user edited. Editing an empty page was unaffected
because the server state was empty.
Fixes:
- board.use_page_template: materialize unique block ids (recursively) when
instantiating built-in or user templates.
- realtime_server: unique block_id() (uuid) + ensure_block_ids() on room
load and on insert ops.
- editor: recursive ensureBlockIds() in init; gtTok() now restores
[[fddate:...]] tokens (date chips survived as labels before).
- realtime client: applySync() normalizes ids, no longer appends unknown
local blocks (duplication), and keeps local content when server is empty.
Tests: pytest (templates + realtime) and Playwright e2e covering to-do
list, weekly report date chip, Enter ordering and legacy id-less repair.
bruno