Phase E acceptance ledger

Tracking: Issue #14

Requirement	Evidence	Status
Canonical batch pmap	hataori-algorithms::pmap; local/remote ordered integration tests	PASS
Batch accounting and bounded prefetch	ControllerStats; one/two slots per target; batch-size tests	PASS
Same-locality zero codec/transport	typed ActionValue path and runtime/algorithm counter assertions	PASS
Exact and object-aware placement	pmap_at, pmap_colocated, pmap_preferred_colocated lower to existing runtime placement	PASS
Broadcast/scatter/gather	registered echo action plus ordered GatherFuture	PASS
Direct async/blocking facade	top-level re-exports and hataori::blocking::pmap	PASS
Checked segmented batch codec	checked counts/conversions/lengths and malformed tests	PASS
TCP/MPI/runtime regressions	scripts/check-phase-e-algorithms.sh	PASS
Frozen legacy continuity and sugar transparency	valid-host paired report required by manifest	INCONCLUSIVE on current host (schedutil; declarations absent)
Automatic migration policy	deliberately deferred until measured workload	NOT REQUIRED

Phase E implementation correctness is complete, but Issue #14’s Phase E performance acceptance is not complete until every frozen required case has a valid-host PASS. P0/P1 therefore remains present.