docs: log final re-verified real P&R signoff after SPI fix + reg file (EXP-0076)
Confirms EXP-0075's fixes (SPI physical-layer bug, register file,
real pin constraints) don't regress timing: WNS +0.056ns (slightly
better than EXP-0074's +0.040ns), 0 failing endpoints, 5173 LUTs,
16 DSP48E1. User confirmed board plan: both JTAG and Master SPI boot
(Winbond W25Q32JVSSIQ config flash, verified in-stock on LCSC) will
be present on the custom PCB.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01MUG92aM9m68TRc4rG55BcC
micheleandClaude Sonnet 5
fd6cc7a2fa