Yard v0.2.0

Added

• Parallel queue. The auto-drain can run up to max_parallel independent
  tasks at once, each in its own git worktree on branch yard/<task-id>
  (yard run --auto --parallel N, the Settings screen, or
  max_parallel in .agents/yard.yaml). Workers run in parallel; queue state
  keeps a single writer; results merge back sequentially, and a conflict drops
  the task to Partial with its worktree kept for inspection. Design:
  docs/parallel-queue.md.
• Task dependencies. Tasks carry depends_on; the planner is asked to cut
  tasks coarse along scope boundaries and mark only genuine output
  dependencies. Yard sanitizes plans to backward references (no self/forward/
  unknown ids, no cycles) and scheduling skips tasks with unmet dependencies.
• Crash recovery for planning. Plan runs record their mode + request up
  front and a consumed marker once derived; a restart (TUI startup, auto-drain,
  or the new yard recover) consumes a planning result the previous session
  paid for but never read — including run dirs created by older versions.
• yard recover. One command to recover an interrupted session: unread
  plans, finished orphaned runs (worktree runs get merged back), and
  interrupted tasks requeued.
• TUI. Run Monitor follows every running task (tab row + Tab/←→ switching
  when parallel), Settings exposes "Parallel tasks", and the auto-drain
  reports gated-vs-drained queues accurately.
• CI. GitHub Actions: cargo fmt --check + clippy -D warnings gate and
  build/test on Ubuntu and macOS.

Fixed

• Orphan recovery is worktree-aware: a finished parallel run found on startup
  is merged into the workspace instead of leaving its changes stranded.
• Planning results are no longer lost when Yard exits mid-plan.