ticket: record umbrella deprecation handoff

.yoi/tickets/open/20260608-132230-deprecate-umbrella-tickets/item.md

@@ -8,7 +8,7 @@ priority: 'P2'
 labels: ['ticket', 'workflow', 'documentation', 'planning']
 workflow_state: 'inprogress'
 created_at: '2026-06-08T13:22:30Z'
-updated_at: '2026-06-09T01:19:38Z'
+updated_at: '2026-06-09T01:20:28Z'
 assignee: null
 queued_by: 'workspace-panel'
 queued_at: '2026-06-09T01:14:14Z'

.yoi/tickets/open/20260608-132230-deprecate-umbrella-tickets/thread.md

@@ -168,3 +168,24 @@ Validation:
 - `nix build .#yoi` if workflows/resources/docs included in package inputs are touched.
 
 ---
+
+<!-- event: implementation_report author: orchestrator at: 2026-06-09T01:20:28Z -->
+
+## Implementation report
+
+Implementation routing started after the previously blocking policy branch was merged and cleaned up.
+
+Worktree/branch:
+- Worktree: `.worktree/deprecate-umbrella-tickets`
+- Branch: `deprecate-umbrella-tickets`
+- Base/routing commit: `8db8d7d ticket: route umbrella deprecation`
+
+Spawned sibling Coder Pod:
+- `coder-deprecate-umbrella-tickets`
+- Scope: non-recursive read on parent workspace root plus recursive write limited to the child worktree.
+
+Routing context:
+- `orchestrator-return-to-planning-context-policy` is merged, validated, closed, and cleaned up.
+- This Ticket is now the active routed policy/workflow implementation work.
+
+---