Wave Loop 823 — module-scope [465][2]^6 Pt non-power-of-two outer-dimension array-of-struct variable from call with indexed signed writes #1585

Next mechanical rung on the packed-array ladder. Add a module-scope [465][2]^6 Pt variable populated from a helper call, with indexed signed field writes and read-back checks. Validates the compiler still emits an Icarus-lowerable Verilog module at ~952 kbit total vector width.