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feat(FN-3942): surface high fan-out blockers in task cards and executor sta

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Adds a "high fan-out" indicator that surfaces when a task blocks an unusually large number of downstream tasks, displayed as a warning badge on TaskCards and in the ExecutorStatusBar. The feature includes core type definitions, dashboard UI updates to render the warning with appropriate styling and

Fusion-Task-Id: FN-3942
This commit is contained in:
Fusion
2026-05-10 15:55:09 -07:00
committed by gsxdsm
parent 9044fbc5a5
commit e9834def83
13 changed files with 247 additions and 16 deletions
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packages/dashboard/README.md
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@@ -264,6 +264,7 @@ A persistent footer status bar at the bottom of the dashboard displays real-time
- **Stuck**: Count of tasks in "in-progress" with no activity for longer than the project's `taskStuckTimeoutMs` setting (shown only when > 0 and the setting is enabled). Uses the same `isTaskStuck()` predicate as task cards and list rows, so the footer count always matches the visible stuck indicators on the board
- **Queued**: Count of tasks in "todo" column
- **In Review**: Count of tasks in "in-review" column
- **High Fan-out**: Shows the worst current blocker in `in-progress`/`in-review` once it reaches **5 todo dependents**; rank order is highest todo count, then highest active total, then stable task ID.
- **Executor State**: Current state badge (Idle/Running/Paused)
- **Last Activity**: Relative timestamp of most recent task event
@@ -273,7 +274,8 @@ A persistent footer status bar at the bottom of the dashboard displays real-time
- **Running**: Engine active with running tasks
**Features**:
- **Shared task list**: Task counts are derived from the same task list used by the board and list views, so the footer always matches the board state exactly. Stuck task detection uses a shared `isTaskStuck()` utility (see `utils/taskStuck.ts`) so the footer count and individual card/row indicators are always consistent
- **Shared task list**: Task counts are derived from the same task list used by the board and list views, so the footer always matches the board state exactly. Stuck task detection uses a shared `isTaskStuck()` utility (see `utils/taskStuck.ts`) so the footer count and individual card/row indicators are always consistent.
- **Thresholded blocker escalation**: Task cards keep ordinary `Blocks N` visibility for non-critical chains while escalating only blockers with `activeTodoCount >= 5` to a distinct `High fan-out` signal. Done/archived downstream tasks never contribute to the threshold.
- **Footer-safe layout**: Project-view content (board, list view, agents view) automatically reserves space for the fixed footer using a CSS custom property (`--executor-footer-height`). The `project-content--with-footer` wrapper class sets this token to 36px on desktop and 32px on mobile, ensuring all content remains fully visible and scrollable above the status bar
- Real-time updates via 5-second polling for executor state (globalPause, enginePaused, maxConcurrent)
- Responsive design: collapses labels on mobile screens (<768px); footer height reduces from 36px to 32px