# Domain Signal Chips Adoption (DigestChip + ReachabilityStateChip)

## Module
Web

## Status
VERIFIED

## Description
Replaced hand-rolled digest truncation/copy markup and bespoke reachability state
display with shared domain chip components (`DigestChipComponent`,
`ReachabilityStateChipComponent`) across mounted (routed) consumer surfaces.

## Implementation Details

### DigestChipComponent adoption (4 consumers)
- `src/Web/StellaOps.Web/src/app/features/releases/releases-list-page.component.ts`
  - Replaced `shortDigest()` + `copyDigest()` + inline SVG copy button with `<app-digest-chip variant="bundle">`
- `src/Web/StellaOps.Web/src/app/features/evidence-thread/components/evidence-thread-view/evidence-thread-view.component.ts`
  - Replaced `shortDigest()` computed + `copyDigest()` snackbar-based copy with `<app-digest-chip variant="artifact">`
- `src/Web/StellaOps.Web/src/app/features/evidence-thread/components/evidence-thread-list/evidence-thread-list.component.ts`
  - Replaced `shortDigest()` method with `<app-digest-chip variant="artifact">`
- `src/Web/StellaOps.Web/src/app/features/lineage/components/attestation-links/attestation-links.component.ts`
  - Replaced `truncateDigest()` + `copyDigest()` + clipboard icon with `<app-digest-chip variant="artifact">`

### ReachabilityStateChipComponent adoption (1 consumer)
- `src/Web/StellaOps.Web/src/app/features/reachability/reachability-center.component.ts`
  - Added `<app-reachability-state-chip>` to witness rows, mapping `isReachable` boolean to `ReachabilityState` type and `confidenceScore` to confidence input
  - Added `reachabilityState()` helper method for type mapping

### Shared chip source components
- `src/Web/StellaOps.Web/src/app/shared/domain/digest-chip/digest-chip.component.ts`
- `src/Web/StellaOps.Web/src/app/shared/domain/reachability-state-chip/reachability-state-chip.component.ts`

## Focused tests
- `src/Web/StellaOps.Web/src/app/features/releases/releases-list-page.component.spec.ts`
- `src/Web/StellaOps.Web/src/app/features/lineage/components/attestation-links/attestation-links.component.spec.ts`
- `src/Web/StellaOps.Web/src/app/features/reachability/reachability-center-chip-adoption.component.spec.ts`
- Updated: `src/Web/StellaOps.Web/src/app/features/evidence-thread/__tests__/evidence-thread-view.component.spec.ts`

## Exclusions
- `finding-list` and `finding-row` consumers reserved for sprint 020
- Dead witness pages and disconnected route files excluded
- Only mounted (currently routed) surfaces adopted

## Verification
- Date: 2026-03-08
- Sprint: SPRINT_20260308_013_FE_orphan_domain_signal_chips_adoption
- Route verification: all consumers confirmed reachable via route tree