refactor(ingestion): delete shadow harness (RING4-3, #944)

gitnexus-shared/src/index.ts

@@ -183,13 +183,3 @@ export {
   stripGitSuffix,
 } from './integrations/understand-quickly.js';
 export type { UqDispatchPayload } from './integrations/understand-quickly.js';
-
-// Shadow-mode diff + aggregation (RFC §6.3; Ring 2 SHARED #918)
-export { diffResolutions } from './scope-resolution/shadow/diff.js';
-export type {
-  ShadowAgreement,
-  ShadowCallsite,
-  ShadowDiff,
-} from './scope-resolution/shadow/diff.js';
-export { aggregateDiffs } from './scope-resolution/shadow/aggregate.js';
-export type { LanguageParityRow, ShadowParityReport } from './scope-resolution/shadow/aggregate.js';

gitnexus-shared/src/scope-resolution/module-scope-index.ts

@@ -8,8 +8,7 @@
  *
  * Part of RFC #909 Ring 2 SHARED — #913.
  *
- * Consumed by: #915 (SCC finalize link pass), #923 (shadow harness when
- * resolving callsite file → enclosing module).
+ * Consumed by: #915 (SCC finalize link pass).
  */
 
 import type { ScopeId } from './types.js';

gitnexus-shared/src/scope-resolution/registries/evidence.ts

@@ -57,8 +57,7 @@ export interface RawSignals {
  *
  * Emission order mirrors the `EvidenceWeights` layout: where-found →
  * type-binding → corroborators → arity → degraded. Stable order makes
- * the per-signal contributions easy to reason about in tests and in the
- * shadow-mode parity dashboard.
+ * the per-signal contributions easy to reason about in tests.
  */
 export function composeEvidence(signals: RawSignals): readonly ResolutionEvidence[] {
   const out: ResolutionEvidence[] = [];
@@ -141,7 +140,7 @@ export function composeEvidence(signals: RawSignals): readonly ResolutionEvidenc
 
 /**
  * Sum evidence weights and clamp to `[0, 1]`. Separate from `composeEvidence`
- * so tests and the parity dashboard can inspect the raw evidence list.
+ * so tests can inspect the raw evidence list.
  */
 export function confidenceFromEvidence(evidence: readonly ResolutionEvidence[]): number {
   let sum = 0;