Graph: TUI rendering

Implement TUI rendering with Brick.

Components

• Breadcrumb bar (path to current node)
• Main view (current node, children, siblings)
• Ops detail view (tool calls within node)
• Input area
• Status bar (keybindings)

Functions

• drawUI :: TuiState -> [Widget Name]
• drawBreadcrumb :: [Node] -> Widget Name
• drawNode :: Node -> Bool -> Widget Name (selected or not)
• drawOps :: [Op] -> Widget Name
• drawInput :: Text -> Widget Name

File

Omni/Agent/Graph/Tui/Draw.hs