The merge adds active graph node visual states (highlight, pulsing indicator, selected border) to the dependency-graph plugin with corresponding test coverage, introduces a plugin AI security scan gate and GraphTaskNode wrapper per FN-3426, and includes a small test stabilization fix alongside docum
Fusion-Task-Id: FN-3084
The merge introduces a new `GraphTaskNode` wrapper component for the dependency graph plugin (FN-3083) with visual parity tests, adds an AI security scan gate to the plugin install/unpack flows (FN-3077), updates the dashboard PluginManager UI and adds plugin API routes, and cleans up remaining main
Fusion-Task-Id: FN-3083