Clear validated CTO board owners after build route

WORKBOARD.yaml

@@ -8,53 +8,53 @@ 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: validated
     source: sot/03-PROTOCOLS/CTO-CASE-STAGED-PROOF-GATES.md
-    owner: jp
+    owner: ""
   - id: CTO-WORK-009
     title: Stage 1 Gated Case Engine PRD
     status: validated
     source: sot/03-PROTOCOLS/CTO-CASE-STAGE1-GATED-ENGINE-PRD.md
-    owner: jp
+    owner: ""
   - id: CTO-WORK-010
     title: Stage 1 Harness Implementation Route
     status: validated
     source: sot/03-PROTOCOLS/CTO-CASE-STAGE1-GATED-ENGINE-ISSUES.md
-    owner: jp
+    owner: ""
 
   - id: CTO-WORK-011
     title: Stage 2 Artificial Fixture PRD
     status: validated
     source: sot/03-PROTOCOLS/CTO-CASE-STAGE2-ARTIFICIAL-FIXTURE-PRD.md
-    owner: jp
+    owner: ""
   - id: CTO-WORK-012
     title: Stage 2 Harness Artificial Fixture Route
     status: blocked
@@ -64,17 +64,17 @@ items:
     title: Case Provider Admission PRD
     status: validated
     source: sot/03-PROTOCOLS/CTO-CASE-PROVIDER-ADMISSION-PRD.md
-    owner: jp
+    owner: ""
   - id: CTO-WORK-014
     title: Hermes Case CLI Task Adapter Route
     status: validated
     source: sot/03-PROTOCOLS/CTO-CASE-PROVIDER-ADMISSION-ISSUES.md
-    owner: jp
+    owner: ""
   - id: CTO-WORK-015
     title: Durable Case Provider Build PRD
     status: validated
     source: sot/03-PROTOCOLS/CTO-CASE-PROVIDER-BUILD-PRD.md
-    owner: jp
+    owner: ""
   - id: CTO-WORK-016
     title: Real Case Provider Stage 2 Run
     status: blocked