feat: task detail screen

[opencode-agent]

Done — the Task Detail feature (issue #129) is complete and verified.

What was finished

• Data layer: TaskDao, TaskRepository, and TaskRepositoryImpl now expose findById(id): Flow<Task?> and suspend delete(id).
• Sharing: Added TaskShareLauncher interface with platform implementations:
  • Android: ACTION_SEND chooser
  • iOS: UIActivityViewController
  • JVM: system clipboard
• Task Detail screen: TaskDetailScreen, TaskDetailViewModel, TaskDetailNavigation, and TaskDetailNavKey.
  • Shows title, description, due date, priority, URL, creation date, completion date
  • Status indicator: red overdue, grey completed, hidden when on track
  • Tappable URL via LocalUriHandler
  • Mark completed, delete, share, and back navigation
  • Handles missing/invalid task IDs with error state
• Today screen: task rows are now clickable and navigate to TaskDetailNavKey.
• String resources: added all Task Detail strings to both values/strings.xml and values-en/strings.xml.

Test fixes

• Added TaskDetailAction.TaskMarkedCompleted side effect so the Orbit MVI test can reliably await the save intent.
• Fixed TodayScreenTest by removing the FoliaryTaskCard:Title tag assertion (clickable row merges descendants); the text assertion remains.

Verification

• Targeted JVM tests pass:
  • dev.appoutlet.foliary.feature.taskdetail.*
  • dev.appoutlet.foliary.feature.today.*
  • dev.appoutlet.foliary.data.task.*
  • dev.appoutlet.foliary.data.task.database.*
  • dev.appoutlet.foliary.AppTest
• Android and iOS main sources compile successfully.

No new third-party libraries were added.

Closes #129

opencode session  |  github run