[kineticsystem]

Summary

• Objectives and subtrees: a tree is an objective when it is the main tree of its file (main_tree_to_execute), a subtree otherwise, which only runs when another tree includes it (isObjective, subtreeCount).
  • The Trees tab lists them apart; a tree alone in its file is listed by its ID only, the file shown on hover.
  • A subtree shows how often it is included, its Run button is disabled, and unusedSubtrees reports one that no tree includes.
  • SubTree nodes get an outlined badge with the subtree icon; the tree's row and the details say Objective or Subtree.
  • Kind in the details switches a tree between the two, in place; "New subtree" creates a file without main_tree_to_execute.
• Two tabs in the workspace panel, Trees and Nodes, each one list with one filter and collapsible groups, instead of four sections with their own filters and resize handles. The tab last shown is a setting.

Test plan

• test.sh: type check and 131 tests pass, with new tests for the helpers, the check and new subtrees.
• Checked in Chrome against the StepIt macro rig's objectives: both tabs, the filter, an objective and a subtree selected, Run disabled for the subtree.

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