uv(parity): DITAv2 multi-leg capability note — built (extra week), verify end-to-end before ADVSL wiring

prod/docs/uv_cert/UV_EXIT_DOCTRINE_PARITY_PASS_20260712.md

@@ -147,3 +147,12 @@ dormant state (present, wired identically, firing identically — i.e. never)
 or parity breaks in UV's favor of a mechanism BLUE doesn't actually express.
 Same verification applies to each modulation branch separately (cascade vs
 withdrawal vs per-asset — one may fire while others are dead).
+
+**⚠ OPERATOR (multi-leg transport): DITAv2 WAS BUILT multi-leg capable —
+it cost an extra week.** `KernelIntent.exit_leg_ratios` is not vestigial;
+the kernel/FSM/venue path was designed for partial-exit legs. Before wiring
+ADVSL legs through it, VERIFY the full chain still functions end-to-end
+(kernel FSM partial-exit states → venue partial close → residual position
+accounting → journal), with tests — capability was built, but it has not
+been exercised by UV; treat as built-but-unproven until a leg round-trips
+on VST.