SubMiner/backlog/tasks/task-187.1 - Auto-expand-targeted-session-when-opening-media-detail.md

id, title, status, assignee, created_date, updated_date, labels, milestone, dependencies, references, parent_task_id, priority, ordinal

id	title	status	assignee	created_date	updated_date	labels	milestone	dependencies	references	parent_task_id	priority	ordinal
TASK-187.1	Auto-expand targeted session when opening media detail	Done	codex	2026-03-18 01:32	2026-03-18 05:28	stats ui	m-1		stats/src/lib/stats-navigation.ts stats/src/App.tsx stats/src/components/overview/RecentSessions.tsx stats/src/components/library/MediaDetailView.tsx stats/src/components/library/MediaSessionList.tsx stats/src/lib/stats-navigation.test.ts	TASK-187	medium	117500

Description

When a navigation path opens episode/media detail with a known session ID, the matching session row in media detail should auto-expand so the user lands directly on the intended session details instead of only the episode history page.

Acceptance Criteria

• #1 Media detail navigation state can carry an optional target session ID alongside the selected video.
• #2 Any navigation path that opens media detail with a known session ID causes that session row to auto-expand when the episode history loads.
• #3 Session-tab fallback for orphan sessions without a video still behaves as it does now.
• #4 Media detail auto-expansion clears or stabilizes its one-shot navigation state so normal manual expand/collapse behavior still works after landing.
• #5 Relevant navigation/component tests cover the targeted media-detail auto-expand behavior.

Implementation Plan

1. Extend media-detail navigation state to optionally carry a target session ID while preserving the existing orphan-session fallback to the Sessions tab.
2. Update app-level navigation helpers and overview recent-session click handling to pass session IDs into media-detail navigation whenever both video and session are known.
3. Thread the one-shot target session ID into MediaDetailView and MediaSessionList so the matching accordion row auto-expands on load, then clear/stabilize that state so manual toggling still behaves normally.
4. Update targeted stats navigation/component tests to cover media-detail auto-expansion and fallback behavior.

Implementation Notes

Extended media-detail navigation state to carry an optional initialSessionId, updated overview/app navigation to pass session IDs into media detail whenever a video-backed session is clicked, and wired MediaDetailView + MediaSessionList to auto-expand and then consume that one-shot session target.

Updated stats-navigation.test.ts to cover the new navigation-state shape. Validation not run in this pass, so acceptance criteria remain unchecked pending verification.