feat(ui): reconnect evidence-thread and persona workspace routes [SPRINT-021]

Mount evidence-thread, auditor-workspace, and developer-workspace routes
under canonical /evidence family as drill-in lenses, not standalone shells.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

docs/features/checked/web/evidence-thread-persona-workspaces-routes.md

@@ -0,0 +1,33 @@
+# Evidence Thread and Persona Workspaces Route Reconnection
+
+## Module
+Web
+
+## Status
+IMPLEMENTED
+
+## Sprint
+SPRINT_20260308_021_FE_unreachable_evidence_thread_and_persona_workspaces_routes
+
+## Description
+Reconnected the disconnected evidence-thread and persona-workspace route families under the canonical `/evidence` route shell. Evidence threads and auditor/developer workspaces are now reachable through Evidence-owned URLs, acting as evidence lenses rather than a parallel product shell.
+
+## Canonical URL Contract
+- `/evidence/threads` - Evidence thread list
+- `/evidence/threads/:artifactDigest` - Evidence thread detail
+- `/evidence/workspaces/auditor/:artifactDigest` - Auditor workspace (compliance lens)
+- `/evidence/workspaces/developer/:artifactDigest` - Developer workspace (findings lens)
+
+## Implementation Details
+- **Route file**: `src/Web/StellaOps.Web/src/app/routes/evidence.routes.ts`
+  - Added `loadChildren` entries for threads, auditor workspace, and developer workspace
+- **Feature routes updated**:
+  - `src/Web/StellaOps.Web/src/app/features/evidence-thread/evidence-thread.routes.ts` - Added breadcrumb data
+  - `src/Web/StellaOps.Web/src/app/features/workspaces/auditor/auditor-workspace.routes.ts` - Added breadcrumb, updated sprint ref
+  - `src/Web/StellaOps.Web/src/app/features/workspaces/developer/developer-workspace.routes.ts` - Added breadcrumb, updated sprint ref
+- **Tests**: `src/Web/StellaOps.Web/src/app/routes/evidence.routes.spec.ts`
+
+## Key Decisions
+- No separate top-level persona menu introduced
+- All persona workspaces remain Evidence-owned drill-ins under `/evidence/workspaces/`
+- Route titles and breadcrumbs align with the Evidence shell pattern