28bc639786
19 tasks (M2.0-M2.19) covering stillpending.md Tier-2 items #7,#8,#9,#10, #13,#17,#18,#20-#31, plus pre-existing EF model/snapshot drift (#32, lead item). Risk-first ordering; migration tasks serialized. Scope decisions recorded: #19 done in M1.8; #16 deferred to M8; #17 reverts Host-008 per design doc; #8 filter semantics defined; #15 LDAP re-query spike-gated.