Every worktree lane gets its own database

With worktrees on, each lane now works on its own copy of your development database instead of sharing it. With worktrees off, QA runs reuse a server that already answers or start one for you.

Added

Each worktree lane gets its own copy of your MySQL, MariaDB, PostgreSQL or SQLite dev database, dropped when the lane settles
Worktrees → Setup shows which database a lane will get and why it would fall back to sharing
QA runs without worktrees adopt a server that already answers, or start and stop your dev server themselves
An existing project can be edited through the same wizard steps that created it

Changed

A settings edit reaches a live run at its next phase instead of its next process
Instances becomes Projects & repos, and the Inbox reads as one workspace on desktop and phone