Refine no longer clobbers the mission description on click. Flow:
1. Click Refine → server generates the rewrite, returns
{ original, refined } WITHOUT persisting
2. RefineDiffModal shows a side-by-side pane (raw before,
Markdown-rendered after)
3. User picks:
- Accept → PATCH /api/missions/{id}/description commits refined
- Cancel → discards the proposal, description unchanged
- Restore original → forces a write of `original` (undo path
for accidentally-accepted refines, since Accept+Cancel is
still a two-step confirmation)
Backend:
- mission_refiner::refine returns a RefineResult { original, refined }
struct instead of persisting + returning the text
- routes::missions::refine now returns { original, refined }
- routes::missions::set_description added on PATCH
/api/missions/{id}/description (draft-only)
Frontend:
- lib/api/missions — refineMission return type is now RefineResult;
added setMissionDescription
- MissionCanvas — RefineDiffModal + DiffPane subcomponents;
accept / cancel / restore handlers wired to state
Closes task #20.
Adds a Refine button to the left of Refresh + Launch on the mission
detail toolbar (draft-only). Clicking it POSTs to a new endpoint that
calls Gemini 2.5 Flash to rewrite the user's freeform description into
a coherent, sectioned Markdown brief (Objective / Context / Scope /
Constraints / Acceptance Criteria / Open Questions) ready for the
research + coding agents to ingest cleanly.
Backend:
- crates/cm-api/src/mission_refiner.rs — Gemini call with a
system prompt that preserves user-provided facts, avoids
invention, and emits raw markdown (not JSON).
- POST /api/missions/{id}/refine — draft-only, 400 on empty
description or non-draft state.
- cm-db::repo::missions::set_description helper.
Frontend:
- MarkdownBlock — tiny zero-dep renderer for h1/h2/h3, bullet +
numbered lists, **bold**, `code`, paragraphs. Deliberately
small; the refiner emits a bounded subset.
- MissionCanvas — Refine button (Sparkles icon, secondary style)
to the left of Refresh; description now renders through
MarkdownBlock instead of a single <p>. Disabled while
description is empty or a refine is in flight.
- lib/api/missions — refineMission client.