The shared notes had no way out: everything lived in the SQLite row and the
only reader was the panel itself. Add two export endpoints and buttons for
them at the bottom of the note panel.
GET /api/notes/{page_id}/export returns one page as .md, and
GET /api/notes/export returns every page as a zip laid out as
<section>/<NN>_<title>.md. Pages are not concatenated into a single file on
purpose - the headings inside a page would collide with whatever heading
level we used as a page separator, so each page stays a verbatim file and the
numeric prefix carries the tab order instead.
Titles reach the filesystem here, so strip the Windows-forbidden characters
and control characters, cap the length, and send Content-Disposition with an
RFC 5987 filename* so Japanese titles survive. The front end deliberately
omits the anchor's download attribute to let that name win.
notes store: flush() now returns a promise so the download can wait for
pending edits to be saved before asking the server for the file.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
colcaroliandClaude Opus 5
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