# PR-05c Selected Asset Details Contract and Preview

## Briefing

Implement the selected-asset details surface in the required fixed order:

1. `Summary`
2. `Runtime Contract`
3. `Inputs / Preview`
4. `Diagnostics`
5. `Actions`

This PR materializes the didactic core of the `Assets` workspace.

## Objective

Deliver the first usable selected-asset details experience, including:

- summary identity/state rendering
- runtime-facing contract rendering
- inputs-by-role rendering
- first previewable input surfaces
- inline diagnostics
- action groups with routine vs sensitive separation

## Dependencies

- [`./PR-05a-assets-workspace-foundation-and-service-state.md`](./PR-05a-assets-workspace-foundation-and-service-state.md)
- [`./PR-05b-asset-navigator-search-filters-and-selection.md`](./PR-05b-asset-navigator-search-filters-and-selection.md)

## Scope

- render the fixed details skeleton
- render summary metadata and location
- render runtime contract fields such as `output.format`, `codec`, and `preload`
- render input groups and input selection
- implement first preview surfaces for previewable inputs
- render inline diagnostics by severity
- render action groups for:
  - `Doctor`
  - `Build`
  - `Adopt`
  - `Register`
  - sensitive operations placeholders where needed

## Non-Goals

- no final staged preview/apply workflow yet
- no final lower log integration yet
- no exhaustive preview support for every asset family

## Execution Method

1. Build the selected-asset details layout in the mandated section order.
2. Render summary and runtime contract from workspace state.
3. Implement inputs-by-role rendering and input selection.
4. Implement baseline preview handling for previewable types.
5. Render inline diagnostics and action grouping.

## Acceptance Criteria

- selecting an asset hydrates a full details view in the fixed section order
- runtime-facing contract fields are visible without raw JSON inspection
- previewable inputs can be inspected from the details area
- diagnostics are visible inline and differentiated by severity
- routine actions and sensitive actions are visibly separated

## Validation

- unit tests for selected-asset detail mapping
- unit tests for action availability by asset state
- UI smoke validation for previewable input rendering

## Affected Artifacts

- `AssetsWorkspace` details area
- preview components
- diagnostics rendering
- action surface wiring
- tests for selected-asset detail behavior