D-012 rev10 corrections (reviewer:d012-rev9-verifier findings): (Finding 1 HIGH) NO copy protocol executes during M-A intake — generic copy.deepcopy (which invoked caller __deepcopy__/__reduce__ behavior before exact-type rejection, enabling hook-driven normalization of unsupported values and a reentrant add() that could silently overwrite an immutable generation identity under the reentrant lock) is removed; _frozen is now a single controlled traversal that exact-type-checks every node before touching it, rejects cycles and nesting beyond depth 64 with typed FAIL_CLOSED, and produces the owned frozen canonical form used for every later check; parent and scope are derived from the owned form; the duplicate precondition is re-verified immediately before commit as defense in depth; import copy removed. (Finding 2 LOW) README onboarding no longer calls the superseded v14 packet 'current' — it links ADR-011/ADR-012 as governing and labels the v14 packet historical. 60/60 tests; copy-protocol probe mutation-checked against the reverted rev9 intake. master