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+utc: 20260716T065305Z
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+M4-001 verified repair delta: independent reproduction CONFIRMED exact-head RoR finding on b7eb724c/tree df1da112. Production v1 loader/schema reject connector kind/subobject mismatches, but migration preview returns ready for tmux+discord and discord+matrix. The existing sole owner has narrow uncommitted red-first repair authority for symmetric exclusivity cases only. Pipeline 1848 is separately narrowed to repository-wide root pnpm test; exact disposable-Postgres reproduction is active. No duplicate ownership. Commit/push/merge, M4-002, parent #758 closure, and all live actions remain held.