board: CE64 one layout; Moore tenant as synapse, membrane and local NARS

[AdaWorldAPI]

Board-only. Records eleven decisions answered on 2026-10-17, each with the statement it rests on, so they are not re-asked:

• CE64 is a 64-bit ISA contract read like BF16 mantissa bits, not storage; no CE128.
• One layout in three regions: S/P/O payload (bits 0..23), F/C (24..39), each readable as palette256 codes or an ISA register, and a 24-bit fixed contract (40..63). Readers are aligned by migration, without renames.
• The Moore tenant (NARS16x8) reuses that layout and omits the bits locality answers.
• The witness is Cartesian: two neighbours agreeing on their shared membrane.
• Moore reasoning is synapse-like (excitation/inhibition). The goal is a cheap local perturbation field with Bayesian and Hebbian learning.
• Hebbian wiring is SPOFC evidence with local NARS reasoning.
• Simpson pooling is prevented by keeping SPOFC per SoA.

The entry also holds:

• the working model that follows from these decisions (SPOFC per synapse across the three Moore tenants, triangle deduction in the 3×3 neighbourhood);
• the CE64 reader catalog (the migration targets in causal-edge and ndarray);
• the open items.

No code changes. entries_index.py --check passes.

One gap noted in the entry: EPIPHANIES.md is generated from epiphanies-canon.json, and every row source there must resolve to an archive line. A Eureka found after the baseline therefore has no route into the projection, so these decisions live in entries/ for now.

---

Generated by Claude Code

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