docket 0.28.0

Changed

• docket graph --web is a new page with two views. Timeline, the default, lists records by time with git branches drawn as lanes and link chips in place of arrows; pills at the top and bottom edge point to linked records scrolled out of view. Graph draws readable cards laid out by ELK, with right-angled edges, and lists records with no relation beside the canvas. "Show lineage" opens one record's supersession chain and direct links as a fitted subgraph.
• The page searches all records with ⌘K or Ctrl+K, keeps the view, lineage, selection, direction and filters in the URL, and has light, dark and system themes.

Removed

• The web view's Force, Radial and Circular engines, its grouping, and its focus and hops controls; lineage replaces focus. docket export keeps --group, --focus, --hops and --include-orphans.
• /api/graph no longer returns DOT and ignores query parameters. The vendored Graphviz WASM is no longer shipped.