Clear completed CTO board owners

WORKBOARD.yaml

@@ -8,32 +8,32 @@ items:
     title: CTO Case Candidate Backend PRD
     status: validated
     source: sot/03-PROTOCOLS/CTO-CASE-CANDIDATE-BACKEND-PRD.md
-    owner: jp
+    owner: ""
   - id: CTO-WORK-003
     title: Planning Validator Coverage
     status: validated
     source: sot/03-PROTOCOLS/CTO-CASE-CANDIDATE-BACKEND-ISSUES.md
-    owner: jp
+    owner: ""
   - id: CTO-WORK-004
     title: Harness Evidence Interface Contract
     status: validated
     source: sot/03-PROTOCOLS/CTO-HARNESS-EVIDENCE-INTERFACE-CONTRACT.md
-    owner: jp
+    owner: ""
   - id: CTO-WORK-005
     title: Case Source Admission Record
     status: validated
     source: sot/03-PROTOCOLS/CTO-CASE-SOURCE-ADMISSION-RECORD.md
-    owner: jp
+    owner: ""
   - id: CTO-WORK-006
     title: Case Adapter Contract And Eligibility Decision
     status: validated
     source: sot/03-PROTOCOLS/CTO-CASE-ADAPTER-CONTRACT.md
-    owner: jp
+    owner: ""
   - id: CTO-WORK-007
     title: Case Failure Fixture Matrix
     status: validated
     source: sot/03-PROTOCOLS/CTO-CASE-FAILURE-FIXTURE-MATRIX.md
-    owner: jp
+    owner: ""
   - id: CTO-WORK-008
     title: Staged Proof Gate Records
     status: candidate