Task Detail Panel

Clicking a task row (on the Run Detail page) slides in a side panel with everything about that one task instance, plus the ability to act on it:

• Clear — reset the task so it re-runs.
• Clear + Downstream — reset this task and everything that depends on it.
• Mark Success / Mark Failed — manually force a state without re-running (useful when you've fixed something outside the pipeline and just need the DAG to reflect reality).
• Details / Logs / XCom tabs — Details shows operator, timing, hostname; Logs shows the task's execution output; XCom shows any data the task passed to downstream tasks.
• Notes — a free-text field for leaving comments on this specific task run (e.g. "restarted manually after upstream outage") — visible to anyone who opens this task later.