A project with a board now carries its key, its address and the address
of the board's public showcase in the public API, so the website can show
its roadmap, releases and tickets for newcomers.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
`taskstream: true` on POST /v1/projects also creates the project in
TaskStream, public, as the caller (their Pireon token is passed on), and
the answer carries `taskstream_key` and `taskstream_url`. The key is
`taskstream_key` or one made from the default-language slug.
The board is opened before the project is saved: if TaskStream refuses
it, nothing is created here and the reason comes back as a validation
error (502 when TaskStream does not answer). Machine tokens need the
server's own TASKSTREAM_TOKEN. Updates ignore the flag, and duplicates do
not inherit the link.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
