oneloop 0.1.0-rc.2

The second release candidate. It adds a read-only knowledge base to each
project and fixes several interface bugs.

Upgrade notes

• Stop oneloop, install the new version, and run
  oneloop db migrate --backup-dir <directory>. It saves a backup first, then
  upgrades the database to schema 2.
• Knowledge needs Git 2.31 or later and an SSH client on the server. The Docker
  image now includes both.

Added

• Knowledge: each project can show one folder of a Git repository as a
  read-only knowledge base, with README files, inline previews and one search
  over names and text. Admins connect it in the project's Settings, from any
  Git host, over HTTPS with an access token or over SSH with a deploy key.
  oneloop checks the branch every minute.
• MCP tools read_knowledge_overview, read_knowledge_file and
  search_knowledge let assistants read the knowledge base.

Changed

• The documentation has fewer, shorter pages. Links to the old pages redirect
  to the new ones.

Fixed

• A sidebar click is no longer lost when the page redraws at the same moment,
  for example while a task from another project is loading.
• On narrow screens, the Board's filters no longer sit against the top edge,
  and its first column no longer touches the left edge.
• Page titles no longer show a focus ring after a refresh or a page change.
• A card dropped in another column now settles there directly, instead of
  flying back to its old place first.
• "Try again in … seconds" after too many sign-in attempts now counts down,
  and says when you can try again.
• Exact times, such as a task's creation time, no longer end with the time
  zone name. They are still shown in the instance time zone.
• Inbox items have a small gap between them, so highlighted items no longer
  touch.
• A long comment's "Show more" preview now fades out smoothly, like a long
  description, instead of ending at a hard edge.
• Clicking "Load older activity" is no longer lost when a new comment or
  change arrives at the same moment.

Distribution

• Docker: ghcr.io/code19m/oneloop:0.1.0-rc.2, for linux/amd64 and
  linux/arm64
• From source:
  cargo install --git https://github.com/code19m/oneloop --tag v0.1.0-rc.2 --locked