show added to adventure_nodes routes. AdventureNodesController#show loads components, children, and edges. Scene page: description + ordered beats (linked) + components (article/stage with hover cards) + outgoing/incoming edge navigation. Act page: description + child scene cards. Beat page: description + components + edges. Graph node cards become clickable links. get_adventure_node MCP tool. ADR-0074.
BL-086
Shipped