Bring the task particle to parity with desktop's richer model:
- Replace the thin `quest` schema with desktop's `task` model
(ChecklistItem, TaskProperties: title/notes/checklist/assigned_to/done)
in the discriminated union, the Firestore converter, and consumers
(StreamCard, FallbackParticleView).
- New TaskParticleView renders an editable card (round done checkbox,
title, notes, checklist with add/toggle/edit/remove, assignee chips)
persisting each edit to Firestore; an 8s dwell auto-advances and
field focus suspends playback. Wired into StreamView's render switch.
- Compose: a task button in the ComposeDock opens a TaskComposeSheet
(createTaskParticle helper). Gated off in the new-stream flow, where a
stream's first particle must be text or media.
Note: particles are written client-side to Firestore, matching desktop;
Orion's REST validator still only accepts `quest`, which is a pre-existing
inconsistency to reconcile backend-side separately.
Co-Authored-By: Claude Opus 4.8 (1M context) <[email protected]>
Claude-Session: https://claude.ai/code/session_01LqGPzXQ1AA9CqYHgCgmbtV
Claude
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