Merged FN-3157 to add a plugin dashboard views system, including a plugin view registry with lazy loading, navigation integration for Header and MobileNavBar, a usePluginDashboardViews hook with cache and refetch support, and tests covering the no-loader path. Also added documentation in `docs/PLUGI
Fusion-Task-Id: FN-3157
- Add plugin dashboard view registration and hosting across core, dashboard routes, and plugin SDK exports
- Integrate plugin-provided views into app navigation, mobile/header UI, and view state hooks with coverage
- Add fusion-plugin-dependency-graph example plugin with persisted storage, dashboard view UI, and manifest wiring
- Update plugin authoring and architecture docs for dashboard view extension points
- Add a changeset for @runfusion/fusion covering plugin dashboard view support
Fusion-Task-Id: FN-3079
